Forces

Front

What is a force?

Back

A force is a push or pull that can cause an object to move, stop, or change direction.

Front

What are the two main types of forces?

Back

Contact forces and non-contact forces.

Front

What is gravity?

Back

Gravity is a force that pulls objects toward each other, such as the Earth pulling objects toward its center.

Front

What is friction?

Back

Friction is a force that opposes motion between two surfaces that are in contact.

Front

What is a push force?

Back

A push force is a force that moves an object away from the source of the force.

Front

What is a pull force?

Back

A pull force is a force that moves an object closer to the source of the force.

Front

How does mass affect gravity?

Back

The greater the mass of an object, the stronger the gravitational force it exerts.

Front

What is mechanical energy?

Back

Mechanical energy is the sum of potential energy and kinetic energy in an object.

Front

What is the role of friction in motion?

Back

Friction slows down or stops the motion of an object.

Front

What happens when two forces act in opposite directions?

Back

The forces can cancel each other out or result in a net force that determines the object's motion.