Q.1
What is the formula for kinetic energy?
  • K.E = m x v
  • K.E = 1/2 m x v2
  • K.E = m x v2
  • K.E = v x m2
Q.2
An athlete has a mass of 70 kg and is running at a speed of 10 m/s. What is their kinetic energy?
  • 3500 J
  • 7000 J
  • 350 J
  • 700 J
Q.3
What is the mass of a ball which has 2.5 J of energy and is traveling at 5 m/s?
  • 0.1 kg
  • 0.2 kg
  • 12.5 kg
  • 62.5 kg
Q.4
Which formula correctly shows the relationship between speed and acceleration?
  • a = (v - u)/t
  • a = (u - v)/t
  • a = (v - t)/u
  • a = v x u x t
Q.5
What is the acceleration of a car as it increases in speed from 3 m/s to 10 m/s in a period of 5 seconds?
  • 1.7 m/s2
  • 1.4 m/s2
  • 2 m/s2
  • 0.6 m/s2
Q.6
What is the mass of a person who accelerates from 0 m/s to 10 m/s in 30 seconds? When traveling at 10 m/s, the person has a kinetic energy of 5000 J.
  • 50 kg
  • 68 kg
  • 86 kg
  • 100 kg
Q.7
Which of the following can be converted into kinetic energy?
  • Gravitational potential energy
  • Elastic energy
  • Chemical energy
  • All of the above
Q.8
A ball is dropped from a height of 10 m and is pulled towards the Earth due to the gravitational field of the Earth. The strength of the Earth's gravitational field is 10 N/kg. What is the mass of the ball, if the ball has 100 J of GPE?
  • 0.5 kg
  • 1 kg
  • 1.5 kg
  • 1.8 kg
Q.9
What is the weight of the ball in the question above?
  • 1 N
  • 9.81 N
  • 10 N
  • 15 N
Q.10
What is the speed of a bird of mass 3 kg which has kinetic energy of 400 J?
  • 10 m/s
  • 16 m/s
  • 17 m/s
  • 20 m/s
0 h : 0 m : 1 s