Unit 05: Force, Motion & Energy Practice

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion.

Front

What does it mean when we say an object has speed and direction?

Back

It means we are describing the object's velocity, which includes both how fast it is moving and the direction in which it is moving.

Front

What happens to the motion of objects when they collide?

Back

Their motion can change, which may include changes in speed and direction.

Front

How is speed defined in physics?

Back

Speed is the distance an object travels per unit of time.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

What is an example of an object with kinetic energy?

Back

A rolling ball is an example of an object that has kinetic energy.

Front

What factors affect the kinetic energy of an object?

Back

The kinetic energy of an object depends on its mass and the square of its velocity.

Front

What is the formula for calculating kinetic energy?

Back

The formula for kinetic energy (KE) is KE = 1/2 mv², where m is mass and v is velocity.

Front

What is the relationship between force and motion?

Back

Force is a push or pull that can cause an object to accelerate, changing its motion.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.