Friction and gravity

Front

What type of friction do the wheels on a moving skateboard experience?

Back

Rolling Friction

Front

Which has more mass, Earth or the Moon?

Back

Earth

Front

What type of friction do swimmers experience in water?

Back

Fluid Friction

Front

What two factors determine the gravity of an object?

Back

Mass and distance

Front

What happens to gravitational force as the distance between two objects increases?

Back

It decreases.

Front

Define friction.

Back

Friction is the resistance that one surface or object encounters when moving over another.

Front

What is gravity?

Back

Gravity is a force that attracts two bodies towards each other, depending on their masses and the distance between them.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Front

What is static friction?

Back

Static friction is the friction that exists between a stationary object and the surface it's on.

Front

What is sliding friction?

Back

Sliding friction is the resistance encountered when one object slides over another.