Understanding Newton's Laws

What is a force?

• A force is a type of energy.

• A force is a unit of distance.

• A force is an interaction that causes a change in motion.

• A force is a measure of temperature.

Can you name a force that pulls things down?

• Friction

• Magnetism

• Buoyancy

• Gravity

What happens to a ball when you stop pushing it?

• The ball will float in the air.

• The ball will roll indefinitely.

• The ball will come to a stop.

• The ball will bounce higher.

If you push a toy car, what will it do?

• The toy car will fly into the air.

• The toy car will move forward.

• The toy car will break apart.

• The toy car will stay still.

What is inertia?

• Inertia is the speed of an object in motion.

• Inertia is the energy stored in an object at rest.

• Inertia is the force that causes an object to move.

• Inertia is the resistance of an object to changes in its motion.

If a car is moving, what keeps it moving?

• The wind pushing it forward.

• The engine's force propelling the car forward.

• The tires gripping the road.

• The brakes slowing it down.

What happens if you push two objects with different weights?

• The lighter object accelerates more than the heavier object.

• Both objects move at the same speed.

• The heavier object moves faster than the lighter object.

• The lighter object does not move at all.

How do we know if something is moving?

• An object is moving if it is making noise.

• An object is moving if its position changes over time.

• An object is moving if it is visible from a distance.

• An object is moving if it is being pushed by a force.

What does it mean when we say 'an object at rest stays at rest'?

• An object will move indefinitely unless stopped by an external force.

• An object will remain in its state of rest unless acted upon by an external force.

• An object will only stay at rest if it is in a vacuum.

• An object at rest will eventually start moving on its own.

If you push a friend on a swing, what happens?

• The swing breaks apart.

• The swing moves back and forth.

• The swing stays still.

• The swing goes upside down.