4NA Prelim Revision 2

Which of the following will affect the period of a pendulum?

• its mass

• its length

• its volume

• its temperature

Which part(s) of the distance-time graph shows acceleration?

• AB, CD

• BC, DE

• EF

• None of the parts

Which of the following is a base quantity?

• speed

• time

• volume

• acceleration

Which instrument measures mass?

• spring balance

• stopwatch

• vernier calipers

• beam balance

• kilo

• mega

• milli

• micro

• 0

• 5

• 10

• 20

The motion of a car is represented in the graph.

Calculate its average speed in the first 70 s.

• 2.1 m/s

• 10.7 m/s

• 12.9 m/s

• 15 m/s

The ball shown is falling at constant speed. What is the relationship between its weight (W) and the air resistance (AR) it encounters?

• W > AR

• W = AR

• W < AR

• W + AR = 10

A block of dimensions shown rests on the ground. To exert the greatest pressure on the ground, which face of the block should rest on the ground?

• 6 x 20

• 20 x 10

• 10 x 6

The graph represents the motion of a car. Which statement best describes its motion?

• It travelled at constant acceleration

• It travelled at constant speed.

• It travelled at increasing acceleration

• It travelled at decreasing acceleration