Kinematics Revision Quiz

Which of the following is a vector quantity?

(Remember: a vector quantity must have both magnitude and direction)

• Mass

• Distance 

• Displacement

• Energy

Mr Goh cycles from A to B by the blue path. He returns from B to A by the black path. 

Select the option that gives the correct value for his distance travelled and total value of displacement.

• Distance = 0 km, Displacement = 0 km

• Distance = 0 km, Displacement = 13 km

• Distance = 13 km, Displacement = 0 km

• Distance = 8 km, Displacement = 5 km

John walks from House A to House B, but then turns around and walks back to House C.

Select the option that gives the correct value for his distance travelled and total value of displacement.

• Distance = 400 m, Displacement = 400 m

• Distance = 800 m, Displacement = 400 m

• Distance = 400 m, Displacement = 800 m

• Distance = 800 m, Displacement = 800 m

A car takes 3 hours to travel from Singapore to Malacca. The distance between Singapore and Malacca is 259 km. Find the average speed of the car in km/h.

• 77 km/h

• 86.3 km/h

• 256 km/h

The speed of a car is 120 meters per second. Calculate the distance the car travels in 1.5 seconds.

• 80 meters

• 80 meters per second

• 180 meters

• 180 meters per second

Which is the correct formula for acceleration?

(v is the final speed, u is the initial speed, and t  is the time taken for the change in speed)

•  $a=\frac{v+u}{t}$  

•  $a=\left(v+u\right)\times t$  

•  $a=\frac{v-u}{t}$  

•  $a=\left(v-u\right)\times t$  

A ball rolls down a slope and accelerates uniformly from 0.0 m/s to 6.0 m/s in 5.0 s.

Calculate the acceleration of the ball.

• 0 m/s²

• 1.2 m/s²

• 5.0 m/s²

• 10 m/s²

Mr Goh accidentally dropped a hammer. The hammer started falling from rest and hit the ground after 2.5 seconds.

The hammer accelerates from 0 m/s to 15.0 m/s just as it hits the ground.

Calculate the acceleration of the hammer while it is falling.

• 0 m/s²

• 6.0 m/s²

• 15 m/s²

A ball is initially rolling towards a slope at a constant speed of 0.48 m/s. Once it starts rolling up the slope, it starts to decelerate.

It takes 4 seconds to come to a stop at the top of the slope.

Calculate the acceleration of the ball while it is rolling up the slope. (Hint: final speed = 0 m/s.)

• -0.12 m/s²

• -1.2 m/s²

• 1.92 m/s²

• 0.12 m/s²

Inside the Physics Lab, Mr Goh holds a rubber ball and a piece of paper and drops them from rest from the same height at the same time. Which of the following statements is true?

• The rubber ball hits the ground first because it experiences less air resistance than the piece of paper.

• The rubber ball hits the ground first because it has more mass than the piece of paper.

• The rubber ball hits the ground first because it has a larger surface area than the piece of paper.

• The rubber ball hits the ground first because it is more elastic than the piece of paper.