Lesson T2.2.1
T2.2.1 Forces as pushes and pulls Quiz: KS3 Physics, Unit 2
20 questions
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Lesson T2.2.1, Forces as pushes and pulls: 20 multiple choice questions for the KS3 Physics (National Curriculum), Unit 2: Motion and forces, written with Revision Ninja.
Host it live on the board and students join with a game code on their own devices, or revise alone with Free Play. The answers are revealed in the game.
The 20 questions
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What is a force?
- A measure of how much matter an object contains
- A push or a pull that acts between two objects
- A measure of how fast an object moves
- A type of energy stored in an object
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What is the unit of force?
- Metre per second (m/s)
- Kilogram (kg)
- Joule (J)
- Newton (N)
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Which of these is a non-contact force?
- The friction between a box and the floor as the box is slid across it
- The tension in a rope pulling a trolley along a flat, level floor
- The push of a hand on a door as a person opens it from the other side
- The pull of gravity from the Earth on an object above it
-
A spring is stretched by a pull. What happens to the energy stored in the spring?
- It becomes thermal energy only
- It is converted into chemical energy
- It is stored as elastic potential energy
- It is destroyed
-
A magnet pulls a paper clip without touching it. What type of force is this?
- A non-contact force
- A force caused by air resistance
- A tension in a string
- A contact force of friction
-
Which force arises when two surfaces rub against each other?
- Upthrust
- Gravity
- Magnetism
- Friction
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A child pushes a shopping trolley. Which statement about the force is correct?
- The force is measured in joules
- The trolley pushes the child's hand as a separate force only
- The child's push is a force acting on the trolley
- The force is stored in the child's hand
-
A force of 15 N is applied to a box. What unit is the force measured in?
- Joules
- Metres per second
- Kilograms
- Newtons
-
Which type of force is associated with squashing an object, such as a sponge?
- A contact force that changes the shape of the object
- A force that only acts on liquids, which squash in the same way as sponges
- A force that only acts in space, where objects are weightless and float freely
- A non-contact force from gravity that pulls the sponge towards the ground
-
Which statement about the interaction of two objects is correct?
- Forces do not occur when objects are not touching
- Forces always come in pairs acting on both objects
- Forces are only found in moving objects
- A force acts on only one object
-
Which force is due to static electricity?
- A rope stretched by a crane lifting a heavy steel load off the ground
- A cup sitting on a table, held there by the table and the cup's own weight
- A car braking on a road, slowed by friction between the tyres and the road
- A balloon sticking to a wall after rubbing
-
Which force pushes an object out of the way as it moves through a fluid?
- Static electricity from the object, which builds up as it moves through the fluid
- Magnetism from the Earth's core, which pulls the object towards the planet
- Gravity pulling it downwards only, which is the weight of the object
- Resistance from the fluid, such as air or water resistance
-
A stretched spring is released. Which change happens in the spring's store?
- Kinetic energy is transferred to chemical energy as the spring is released
- Elastic potential energy is transferred to the kinetic energy of the moving object
- No energy changes occur because the spring's stored energy stays inside it
- Thermal energy is transferred to elastic potential energy as the spring cools
-
A stone rests on a shelf. Which force from the shelf balances its weight?
- A non-contact magnetic force
- An upward contact force from the shelf
- A downward force from the shelf
- Air resistance
-
A force meter measures a force of 6 N. Which action increases the reading?
- Changing the colour of the force meter
- Moving the force meter to a different room
- Pulling the hook harder
- Reading the meter in a different unit
-
Which of these is a contact force?
- Gravity on a falling leaf
- Air resistance on a falling leaf
- Magnetic attraction to a magnet
- Electrostatic attraction from a balloon
-
A boy pulls a rope with a force of 40 N and a girl pulls the other end in the opposite direction with 40 N. What is the net effect on the rope?
- The forces are balanced and the rope does not accelerate
- The rope gains 80 N of force
- The rope accelerates in the direction of the boy
- The rope gains kinetic energy only
-
A tennis ball is hit and changes direction. What is the cause of this change?
- The ball's mass changing
- A force acting on the ball
- The ball's colour changing
- The ball gaining energy from nowhere
-
Which of these is a force that holds a book on a table in place?
- Static electricity from the book, which sticks it to the surface below
- A non-contact force from the ground below, which pulls the table and book together
- The upward push of the table, called the normal contact force
- A magnetic force from the table, which holds the book down by attraction
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Stretching a spring needs a force. What kind of force is it, and how does the spring push back?
- A non-contact force that stays the same size
- A magnetic force that pulls the spring back
- A contact force that grows as the spring is stretched further
- A gravitational force that depends on the spring colour
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