Forces Quiz

Description

Questions on forces
Peter  Hoskins
Quiz by Peter Hoskins, updated more than 1 year ago More Less
Matthew T
Created by Matthew T over 9 years ago
Peter  Hoskins
Copied by Peter Hoskins over 9 years ago
33
1

Resource summary

Question 1

Question
True or false? Work is done when an object is moved by a force.
Answer
  • True
  • False

Question 2

Question
True or false? Work uses a different SI unit to energy.
Answer
  • True
  • False

Question 3

Question
True or false? Gravitational potential energy is energy stored in an object because of its position in the Earth's gravitational field.
Answer
  • True
  • False

Question 4

Question
What is the gravitational potential energy of an object of 0.5kg mass if it is lifted by 3m?
Answer
  • 1.5J
  • 3J
  • 15J
  • 10.5J

Question 5

Question
What is the power developed of an object which, when lifted, gains 60J in 10s?
Answer
  • 600W
  • 6W
  • 60W

Question 6

Question
True or false? Kinetic energy is the energy of an object when it is stationary.
Answer
  • True
  • False

Question 7

Question
True or false? Momentum is a scalar quantity.
Answer
  • True
  • False

Question 8

Question
True or false? In a closed system, the total momentum before an event is equal to the total momentum after the event.
Answer
  • True
  • False

Question 9

Question
Trolley A, 6kg, is travelling in one direction at 4m/s. Trolley B, 7kg, is travelling in the other direction at 3m/s. The two trolleys stick together and move off. What is the velocity of the two trolleys?
Answer
  • 2.5m/s
  • 3m/s
  • 3.5m/s
  • 4m/s

Question 10

Question
True or false? In an explosion, the total momentum is zero.
Answer
  • True
  • False

Question 11

Question
True or false? If, in an explosion, two pieces of debris move apart, they will not move with equal and opposite momentum.
Answer
  • True
  • False

Question 12

Question
True or false? If the impact time is increased, the impact force will be increased.
Answer
  • True
  • False
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