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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.

667.

The inner diameter of a small test tube can be measured accurately using a

A.

Micrometres screw gauge

B.

Pair of dividers

C.

Metre rule

D.

Pair of vernier calliper

Correct answer is D

A vernier scale is a visual aid to take an accurate measurement reading between two graduation markings on a linear scale by using mechanical interpolation; thereby increasing resolution and reducing measurement

668.

Calculate the effective capacitance of the circuit in the diagram given

A.

4μf

B.

3μf

C.

2μf

D.

1μf

Correct answer is D

No explanation has been provided for this answer.

669.

What effort will a machine of efficiency 90% apply to a load of 180N if its efforts arm is twice as long as its load arm?

A.

100N

B.

90N

C.

80N

D.

120N

Correct answer is A

No explanation has been provided for this answer.

670.

An object moves in a circular path of radius 0.5m with a speed of 1ms1. What is its angular velocity?

A.

8rads1

B.

4rads1

C.

1rads1

D.

2rads1

Correct answer is D

No explanation has been provided for this answer.