The Neco gce physics answers 2021 to questions are now available for exam candidates. The National Examination Council (NECO) Senior School Certificate Examination (SSCE) Physics paper will be written on Thursday 9th December 2021.
The O’Level Neco gce physics questions below are for Paper III & II: Objective & Essay which will commence from 02:00 pm and end by 4:40 pm. That means the examination will last for three hours.
The resources below on Neco GCE Physics questions 2021 have been provided to assist you to understand the required standards expected in Physics final Examination. Continue reading.
NECO GCE Physics Answers 2021 Questions.
- (a) A stone projected horizontally from the top of a tower with a speed of 4 ms-1 lands on the level ground at a horizontal distance of 25 m from the foot of the tower. Calculate the height of the tower. [ g = 10 ms-2 ]
(b) A spiral spring with a metal extends by 10.5cm in the air When the metal Is fully in
water, the spring extends by 6.8 cm. Calculate the relative density of the metal (Assume Hooke s law Is obeyed)
- (a) Explain diffusion.
(b) Give one reason why the rate of diffusion is higher in gasses than in liquid at the same temperature. - (a) State two conditions under which photo-electrons can be emitted from the surface of a metal.
(b) List two particles characteristics of electromagnetic waves.
ANS: (a) Conditions for emission of photoelectrons
– the wavelength of incident radiation must be less than the threshold wavelength of the metal surface.
– the frequency of incident radiation must be greater than the threshold frequency.
– the energy of the incident photons (radiation) must be greater than the Work function of the metal
(b) Particle characteristics of electromagnetic waves;
e.g – Photoelectric effect
– Thermionic emission
– Radiations from heated bodies (Black body)
– Emission and absorption of light (incandescence)
– Compton effect. - (a) Explain how gas can be made to conduct electricity.
(b) Name the electric charge carriers in gases.
ANS: (a) The molecules /atoms of a gas must be ionized before the gas can conduct electricity. Ionization of the gas requires that the gas pressure is very low within the enclosure and a very high voltage is applied to the enclosed gas.
(b) Charge carries in gases are Electrons; Ions - State;
(a) two applications of electrolysis in an industry;
(b) one application of electrolysis in a school laboratory. - Explain why water in a narrow glass tube has a concave meniscus while mercury, in the same tube, has a convex meniscus.
- (a) (i) What is an eclipse?
(ii) List the three types of eclipse.
(b) A student in a lecture theatre can read from the board clearly but requires a pair of spectacles to read from a book.
(i) What eye defect has this student?
(ii) What type of lens is needed to correct the eye defect?
(iii) The focal length of the lens used to correct this defect is 10 cm. Calculate the power of the lens.
(c) A car B moves towards a stationary car A. If B produces an ultrasonic sound at a point and it takes 5.6 x 10-3 s for a beep to be heard in B, calculate the distance between the two cars at that instant. (Speed of sound in air = 340 ms-1)
(d) The image of an object is located 9 cm behind a convex mirror. If the magnification produced is 0.6, calculate the focal length of the mirror. - (a) (i) What is a vector quantity?
(ii) Three vectors 3 ms-1 N 45o W, 12 ms-1W, and 5ms-1 S act at a point.
(iii) Sketch a vector diagram to illustrate the given information.
(iv) Calculate the resultant of the vectors.
(b) In a laboratory experiment to determine the force constant of a spiral spring, the mass on the spring was varied and the corresponding extensions were measured and recorded as shown in the table below.
| Mass m/g | Weight W/N | Extension e/cm |
50 | 6.5 |
(i) Copy and complete the table. (Take g = 10ms-2 )
(ii) Plot a graph with weight, W, on the vertical axis and extension, e, on the horizontal axis.
(iii) Using the graph, determine the force constant of the spring.
(iv) Determine the natural length of the spring if its length was 38.0 cm when loaded with 250 g mass.
- (a) Define heat capacity and state its unit.
(b) List two effects of heat on a substance
(c) Explain how a tightly fitted glass stopper could be removed from a reagent bottle.
(d) A quantity of pepper soup of mass 800g poured into a plastic container with a tight fitting lid has a temperature of 30oC. The container is then placed in a microwave oven, rated 1200 W, and operated for 3 minutes.
(i) Calculate the final temperature attained by the soup. (Assuming no heat losses).
(ii) Explain why containers with tight-fitting lids are not suitable for use in microwave cooking.
(iii) When the soup is brought out and allowed to cool, a dent was observed on the container. Explain.
[ Take specific heat capacity of the soup = 4000 Jkg-1 K-1 ] - (a) State the three characteristics of sound and the factor on which each of them depends.
(b) Explain resonance as applied to sound.
(c) Explain why sound waves cannot be plane-polarized.
(d) What role does echo play in the construction of a concert hall?
(e) The surface of an eardrum (assumed circular) has a radius 2.1 mm. It resonates with an amplitude of 0.8 x 10-7 m as a result of impulses received from an external body vibrating at 2400 Hz. If the resulting pressure change on the eardrum is 3.6 x 10-5 Nm-2. Calculate the:
(i) period of oscillation
(ii) velocity
(iii) acceleration
(iv) force.
[Pi = 3.14] - (a) Define electromotive force.
(b) State:
(i) the principle of operation of a potentiometer;
(ii) two advantages that a potentiometer has over a voltmeter in measuring the potential difference.
(c) (i) Sketch and label a diagram of a gold-leaf electroscope.
(ii) Give one use of a gold-leaf electroscope.
(d) (i) Explain the action of a magnetic relay:
(ii) List two factors that determine the magnitude of an induced emf in a coil.
(iii) A current of 5 A passes through a straight wire in a uniform magnetic field of flux density 2.0 x 10-3 T. Calculate the force per unit length exerted on the wire when it is inclined at 30o to the field.
12.
Neco GCE Physics 2021 Objective Questions.
5.
NECO GCE Physics Expo Answers 2021: Hello Dear, welcome to Funloaded, Your legit NECO GCE 2021 exam help desk. It’s just a few hours before the exam.
Are you one of the candidates who has registered for the NECO GCE 2021/2022 Exams and is looking for NECO GCE 2021 Physics Answers? As long as this page is involved, your problem is fixed.
SMART TAGS; NECO GCE Physics 2021 Answers, NECO GCE Physics Answers 2021, NECO Physics 2021, NECO GCE Physics expo 2021, NECO GCE Physics questions and answers 2021, NECO GCE 2021 Physics Answers, NECO GCE question and answer 2021, 2021 NECO GCE Physics obj and Theory Answers.
2021/2022 NECO GCE Physics Questions: Physics NECO GCE Expo Questions is out now on our website. In this article, I will be showing you the recent NECO GCE Physics questions with answers.
BUT IF YOU THINK WHAT YOU’VE READ AND WHAT YOU’VE BEEN TAUGHT BY YOUR TEACHER IS ENOUGH TO TACKLE NECO GCE Physics Paper III & II (Objective & Essay) QUESTIONS SET BY PROFESSORS, THEN GO AND RISK IT, I PRAY YOU WON’T REWRITE THESE EXAMS AGAIN. BUT KNOW THAT SUCCESS IS YOUR VICTORY”
You will also understand how NECO GCE Physics Objective & Essay is set and many more examination details. All you need to do is to stay focused and follow this guide. Check out MATHEMATICS Answer to Question solution.
NECO GCE Physics Answers Latest Update
Our greatest joy is for you to pass your NECO GCE Physics Objective & Essay Expo scheduled on the 9th December 2021 examination with ease because reading is the key to success, try your best so you can be able to defend yourself and your certificate anywhere.
Please note we only help to back you up and our backup is certain and solidify with 100% assurance as you have to subscribe for it by following the Procedure below.
NECO GCE Physics UPDATE!!!: Don’t send your subscription/card twice. If you do so your subscription will be terminated be warn. Send your subscription early to get your password early. 100% Refund if the 2021 NECO GCE exam is not delivered to your taste and satisfaction. 100% assurance and authentic answers will reach you.
Don’t panic we never fail to our promise. Give it a try and enjoy our service. Once again don’t be deceived by other sites or WhatsApp people or groups promising and telling you stories they will only give you fake or late answers. For your own good kindly subscribe to us for 100% assurance.
Our Official Number Remains 08032773749 AVOID Calling us. We don’t pick calls but only attend to SMS/WhatsApp. Click Here To Chat Us On WhatsApp
[njwa_button id=”58289″]
NECO GCE Physics EXAMINATION HAS BEEN SCHEDULED TO TAKE PLACE ON
Thursday 9th December, 2021
- Physics Paper III & II (Objective & Essay) 2.00 pm – 4.40 pm
FOR 2021 NECO GCE Physics Objective & Essay Answers
Follow the guidelines below and select the best price list that suits your need for a subscription for all subjects plan click here for full details.
- Well-Typed NECO GCE Physics to answer Direct To Your Mobile Phone As SMS before the exam, COSTS Airtime MTN Recharge Card worth N1000.
- To Get the complete NECO GCE Physics 2021 answer online via our password protected page, Kindly Send an MTN Recharge Card worth N500
- To Get complete NECO GCE Physics to answer 2021 on WhatsApp as Whatsapp Message, Kindly Send MTN Recharge Card worth N600
[njwa_button id=”58289″]
How to Subscribe
- For Direct SMS: Send The card pin, Subject name (NECO GCE Physics Answer), and your phone number as SMS to 08032773749 (Please don’t call the number)
- For Whatsapp Answer: Send The card pin, Subject name (NECO GCE Physics Answer) as a WhatsApp message to 08032773749 on Whatsapp. (Please don’t call the number and don’t message the number on Whatsapp if you didn’t agree to anything posted here)
- For Password link answer: Send The card pin, Subject name (NECO GCE Physics Answer), and your phone number as SMS to 08032773749 (Please don’t call the number, just send your card)
Kindly follow the instruction very well in order to serve you better.
Forward Your MTN PIN, Exam with Subject Name, the Phone number to 08032773749 via TEXT MESSAGE(SMS), or WHATSAPP ONLY.
IMPORTANT NOTICE: Please don’t try to message the number on WhatsApp or send an SMS if you have a trust issue. It’s not possible to be repeating the same thing I already explained.
If you believe someone will scam you with just ordinary N1000, you can leave it and write the exam with your empty brain. Thanks
[njwa_button id=”58289″]
NOTE: Paying In Bulk Is Cheaper Than Daily Payments. Payments Are Done Now With MTN Recharge Card Only! Be Wise and Act Smart before Exam to Get Registered and Verify Your Subscription Here After Making Your Payment.
Don’t panic we never fail to our promise. Give it a try and enjoy our service. For your own good kindly subscribe to us for 100% assurance.
Our Official Number Remains 08032773749 AVOID Calling us… Click Here To Chat Us On WhatsApp
💥Subscribe Now & Get It Midnight Before Exam.
Conclusion
Please note that the answers presented in this post is a guide to the forthcoming national examination council NECO GCE exam Physics. We have prepared it to aid the student in preparing for the practical. If you have any questions about the NECO GCE 2021 Physics Objective & Essay questions and answers, kindly let us know in the comment box
PLS. DROP YOUR MSG & WAIT FOR OUR RESPONSE SOON ✅
DISCLAIMER:- DON’T COME HERE FOR A FREE ANSWER, OR ELSE WE WILL BLOCK YOU
PLEASE NOTE: AVOID CALLING US & NO SENDING OF FAKE PINS.
I WISH YOU ALL GOOD LUCK 🤞…
NO PAYMENT NO PAPERS
PAYMENT BEFORE PAPERS
=========================
Funloaded.org.ng send all exam expo answer earlier than others
=========================
