7th Grade Science Winter Final Review 2024

What is a force?

• A type of energy
• The rate at which an object performs work
• A push or a pull
• An object that makes up matter

Force is measured in:

• Newtons
• Joules
• Meters
• Meters per second

What type of force opposes motion, causing moving objects to slow down and/or stop?

• An applied force
• Friction
• Magnetic force
• Electric force

The force of friction exerted by a surface depends on:

• The color of the surface
• The temperature
• The smoothness of the surface
• The hardness of the surface

Which force is responsible for causing leaves from a tree to fall to Earth’s surface?

• Magnetic force
• Electric force
• Gravitational force
• Friction

Which object exerts gravity?

• Earth
• The moon
• A basketball
• All of them exert gravity

What force keeps the Earth is orbit around the sun?

• Friction
• Gravity
• Earth’s magnetic force
• The sun’s magnetic force

What do we call the invisible force exerted by magnets?

• Magnetic force
• Electromagnetic force
• Electric force
• Applied force

What do you call the area of electric force around an electrically charged object?

• Electric strength
• Electric field
• Electric space
• Electricity

What happens to the motion of an object forces acting on the object are equal and balanced?

• The object begins to move
• The object begins to slow down
• The motion of the object does not change