U4 Force & Motion Amplify Science

Front

What is force?

Back

A push or pull on an object that can cause it to change its velocity (speed or direction).

Front

What is motion?

Back

The change in position of an object over time.

Front

What is mass?

Back

The amount of matter in an object, usually measured in kilograms.

Front

How does mass affect force?

Back

Objects with more mass require more force to change their motion compared to lighter objects.

Front

What is acceleration?

Back

The rate at which an object changes its velocity.

Front

What is the relationship between force and acceleration?

Back

According to Newton's second law, force equals mass times acceleration (F = ma).

Front

What is inertia?

Back

The tendency of an object to resist changes in its state of motion.

Front

What happens when two objects collide?

Back

The forces exerted during the collision can change the speed and direction of the objects.

Front

What is the principle of conservation of momentum?

Back

In a closed system, the total momentum before a collision is equal to the total momentum after the collision.

Front

What is a balanced force?

Back

Forces that are equal in size but opposite in direction, resulting in no change in motion.