alleryStart learning →A push or a pull on an object is called what?
- Heat
- Light
- Sound
- Force
Show answer and solution
Correct answer: D. Force
A push or a pull that can move an object or change its shape is a force.
Olympiad (Class 4) Force, work and energy — practice questions
Explore 60 free Force, work and energy questions in Olympiad (Class 4) Science. Open each question or exercise to read its content, reference answers and available explanation.
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Showing questions 1–30 of 60.
A push or a pull on an object is called what?Read the answer and worked solution →A ball slips from your hand and falls to the floor. Which force pulls it down?Read the answer and worked solution →Which unit is used to measure force?Read the answer and worked solution →You rub your hands together fast and they feel warm. Which force causes this heat?Read the answer and worked solution →Why is it easier to walk on a rough floor than on a smooth wet floor?Read the answer and worked solution →A moving cycle has which kind of energy because it is in motion?Read the answer and worked solution →A battery lights a torch bulb. Which energy is stored inside the battery?Read the answer and worked solution →A stretched rubber band stores which kind of energy?Read the answer and worked solution →Which energy from the Sun warms the Earth and helps plants grow?Read the answer and worked solution →A seesaw in a park is an example of which simple machine?Read the answer and worked solution →A ramp is used to roll a heavy drum up into a truck. Which simple machine is the ramp?Read the answer and worked solution →A rope over a pole lets you raise a flag by pulling down. What does the pulley change?Read the answer and worked solution →A bicycle uses wheels, levers and pulleys together. This kind of machine is called a what?Read the answer and worked solution →Raj lifts a box from the floor to a high shelf. Which energy does the box gain?Read the answer and worked solution →A ball at the top of a slide rolls down. Its stored energy turns into which energy?Read the answer and worked solution →A dam holds water high up behind a wall. Which energy does this water store?Read the answer and worked solution →An electric fan spins its blades. Which energy is the electric energy mostly changed into?Read the answer and worked solution →A toaster gets very hot when switched on. Which energy is electric energy changed into?Read the answer and worked solution →An electric bulb gives light. It also becomes warm because some energy changes into what?Read the answer and worked solution →A loudspeaker changes electric energy into which energy that we can hear?Read the answer and worked solution →Which pair of food parts gives most of the energy that a person gets from food?Read the answer and worked solution →The joule is a unit of energy. Which of these is a unit of force instead?Read the answer and worked solution →Which unit tells how fast energy is used, such as for a bulb?Read the answer and worked solution →Two friends push a box the same way, one with 10 N and one with 15 N. What is the total push?Read the answer and worked solution →Two teams pull a rope in opposite ways, each with 200 N. What is the net force on the rope?Read the answer and worked solution →One child pushes a box right with 30 N. Another pushes it left with 20 N. What is the net push?Read the answer and worked solution →A box does not move when two equal pushes act on it from opposite sides. The forces are called what?Read the answer and worked solution →Which of these shows a force changing the shape of something?Read the answer and worked solution →A rolling ball slows down and stops on grass. Which force mostly stops it?Read the answer and worked solution →Why do we put oil on a squeaky door hinge?Read the answer and worked solution →
Worked practice questions
A ball slips from your hand and falls to the floor. Which force pulls it down?
- Friction
- Tension
- Gravity
- Spring force
Show answer and solution
Correct answer: C. Gravity
Gravity is the pull that makes objects fall towards the Earth.
Which unit is used to measure force?
- Metre
- Litre
- Gram
- Newton
Show answer and solution
Correct answer: D. Newton
Force is measured in newtons, written N.
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