Forces and Motion

Front

What is friction?

Back

Friction is a force that resists the motion of two surfaces sliding against each other.

Front

How does mass affect motion?

Back

The greater the mass of an object, the less effect a force will have on its motion.

Front

What happens when you push a toy car with more force?

Back

The toy car will roll faster down a ramp.

Front

Which toy truck will move the longest distance when pushed with the same force?

Back

The toy truck with less mass will move the longest distance.

Front

Why does oil make a machine work faster?

Back

Oil reduces the friction between the parts of the machine.

Front

What is a force?

Back

A force is a push or pull that can change the motion of an object.

Front

What is gravity?

Back

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

Front

What is the relationship between force and motion?

Back

A force applied to an object can cause it to start moving, stop moving, or change direction.

Front

What is inertia?

Back

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

Front

How does surface texture affect friction?

Back

Rough surfaces create more friction than smooth surfaces.