WAEC Physics – Gambia

Question 11

A student measures the length of a table as 2.00 m with an uncertainty of ±0.01 m. What is the percentage error in this measurement?

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Question 12

A car accelerates uniformly from rest to 20 m/s in 5 seconds. What is its acceleration?

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Question 13

According to Newton's third law, when you push a wall, the wall...

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Question 14

What is the work done when a force of 10 N moves an object 3 meters in the direction of the force?

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Question 15

An object moves in a circle of radius 2 m at a constant speed of 4 m/s. What is the magnitude of its centripetal acceleration?

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Question 16

The displacement equation for a simple harmonic oscillator is x = A sin(ωt). What is the phase constant in this equation?

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Question 17

Which of the following materials would exhibit the greatest elasticity?

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Question 18

What causes the atmospheric pressure to decrease with altitude?

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Question 19

In the photoelectric effect, increasing the frequency of incident light above the threshold frequency causes...

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Question 20

Which of the following is a scalar quantity?

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