Gravity + Magnets + KE/PE

Front

What happens to your mass if Earth's mass is cut in half?

Back

Nothing; mass is not affected by gravitational force.

Front

What is true about a bar magnet?

Back

It is surrounded by a magnetic field.

Front

What is the amount of matter in an object called?

Back

Mass.

Front

Magnetism is a force of __________ that occurs between two __________ objects.

Back

Attraction or repulsion; magnetic.

Front

What never changes no matter where in the universe?

Back

Mass.

Front

What is the force that attracts objects towards each other?

Back

Gravity.

Front

What is the difference between kinetic energy (KE) and potential energy (PE)?

Back

KE is energy of motion; PE is stored energy based on position.

Front

What is the formula for gravitational potential energy?

Back

PE = mgh (mass x gravity x height).

Front

What is the formula for kinetic energy?

Back

KE = 1/2 mv² (1/2 x mass x velocity squared).

Front

What is the unit of mass in the metric system?

Back

Kilogram (kg).