Physics questions and answers

Physics Questions and Answers

If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.

1,696.

A machine is said to be a third class lever when the

A.

load is between the fulcrum and effort

B.

fulcrum is between the effort and the load

C.

effort is between the fulcrum and load

D.

fulcrum is directly below the load

Correct answer is C

No explanation has been provided for this answer.

1,697.

Which of the following sources of energy is/are exhausible? i. Solar ii. Fossil fuels iii. Tidal power

A.

i, ii and iii

B.

i and ii only

C.

i and iii only

D.

ii and iii only

Correct answer is D

No explanation has been provided for this answer.

1,700.

Simple harmonic oscillator has a period of 0.02s and amplitude of 0.25m. Calculate the speed in ms-1 at the centre of the oscillation

A.

125\(\pi\)

B.

25.00\(\pi\)

C.

100.00 \(\pi\)

D.

400.00\(\pi\)

Correct answer is B

V = WX = \(\frac{2\pi \times 0.25}{0.02} = 25\pi\)