Question 1

Which of the following lengths is the longest?

Accepted Answer

2.5 Mm

Answer

2.5 micro meter

Answer

2.5 nm

Answer

2 km

Question 2

A simple pendulum takes 34.0 s to complete 20 oscillations. What is one period[Hint: Period = Time/number of oscillations]

Accepted Answer

1.7 s

Answer

0.85 s

Answer

6.8 s

Answer

3.4 s

Question 3

Which of the following will cause the period of the pendulum to change?

Accepted Answer

Decreasing the length of the pendulum.

Answer

Increasing the volume of the swinging pendulum.

Answer

Decreasing the mass of the pendulum bob.

Answer

Increasing the angle of the swinging pendulum.

Question 4

Which of the following shows a scalar quantity?[Clue: Scalar qty means having magnitude only but no direction]

Accepted Answer

mass

Answer

acceleration

Answer

velocity

Answer

weight

Question 5

A car travels along the route PQRST in 30 minutes(half an hour). What is the average speed of the car?[Hint: Speed= total distance(km)/total time(hr)]

Accepted Answer

60 km/h

Answer

20 km/h

Answer

10 km/h

Answer

30 km/h

Question 6

An object falls freely near to the Earth. Which row describes the acceleration and the speed of the object?

Accepted Answer

B

Answer

A

Answer

D

Answer

C

Question 7

Which row correctly describes the mass and weight of an object?

Accepted Answer

A

Answer

C

Answer

D

Answer

B

Question 8

A 2 kg box is pushed by a force of 12 N across a smooth surface. Calculate the acceleration in m/s²

Accepted Answer

6

Answer

24

Answer

0.17

Answer

10

Question 9

A block 2.5 m long, 0.8 m wide and 1.0 m high rests on the ground as shown in the diagram below. Given that the block has a weight of 100 N, what is the highest pressure the block can exert on the ground? (gravitational field strength, g = 10 N/kg)Clue: Pressure= Force/Area

Accepted Answer

125 Pa

Answer

250 Pa

Answer

12.5 Pa

Answer

25.0 Pa

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