Contact and Non-Contact Forces

Front

What happens to the Moon if the size of Earth doubled?

Back

The Earth's gravitational pull would INCREASE, pulling the Moon toward it.

Front

What is a NON-CONTACT force?

Back

A push or pull force where the objects are not touching.

Front

Why do an apple and a basketball hit the ground at the same time when dropped from a height?

Back

The force of gravity on them is equal.

Front

What type of charging occurs when a balloon is rubbed with a wooly fabric?

Back

Friction.

Front

What is the amount of matter in an object called?

Back

Mass.

Front

What is gravity?

Back

A force that attracts two bodies toward each other.

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 an example of a contact force?

Back

Friction between two surfaces.

Front

What is inertia?

Back

The tendency of an object to resist changes in its state of motion.

Front

What is the formula for calculating weight?

Back

Weight = Mass x Gravitational Acceleration (W = m x g).