Force, Motion, and Energy

Contact forces and non-contact forces.

Frictional forces and gravitational forces.

Magnetic forces and electric forces.

Tension forces and normal forces.

Friction is an example of a contact force.

Gravity is an example of a contact force.

Magnetism is an example of a contact force.

Electric force is an example of a contact force.

A push moves things away from you.

A push makes things heavier.

A push causes things to break.

A push has no effect on an object.

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

An object will accelerate in the direction of the net force acting on it.

For every action, there is an equal and opposite reaction.

An object in motion will eventually come to a stop without external forces.

Friction is the same on all surfaces regardless of texture.

A hard wood floor has more friction than a carpet.

Friction varies with surface texture; for example, a hard wood floor has less friction than a carpet.

Friction only occurs on rough surfaces.

A force that accelerates an object.

A force that opposes the motion of an object.

A force that increases the speed of an object.

A force that changes the direction of an object.

Energy is required to perform work, which results in motion.

Energy is only needed for stationary objects.

Energy can be created from motion without any input.

Energy is irrelevant to the concept of motion.

A pull moves things towards you.

A pull pushes things away from you.

A pull makes things heavier.

A pull has no effect on objects.

A force is a push or pull exerted on an object.

A force is the mass of an object multiplied by its acceleration.

A force is the energy required to move an object.

A force is a type of energy that can be converted into work.

The energy of an object in motion.

The energy stored in an object due to its position or state.

The energy released during a chemical reaction.

The energy associated with the temperature of an object.