Gravity & Electricity Unit Review

"the amount of gravity applied to an object's mass, giving it a value of heaviness"

• weight

• associate

• kinetic energy

• potential energy

"to connect or relate to another object or idea"

• weight

• associate

• kinetic energy

• potential energy

"the energy exerted by an object in motion"

• weight

• associate

• kinetic energy

• potential energy

"the energy stored by an object at rest"

• weight

• associate

• kinetic energy

• potential energy

Gravity is...

• a force that stops objects from moving.

• a force that pulls objects toward each other.

• a force that emits electrical charges.

• a force that creates light.

What does the Law of Gravitation state?

• That gravity affects only stars and planets.

• That gravity does not exist without an orbit.

• That gravity acts on all objects that have mass.

• That gravity causes motion.

Which TWO factors contribute to the strength of gravity?

• The mass of the object exerting the gravitational pull.

• The speed of the orbit.

• The weight of the object being pulled.

• The distance between each object.

Which one is MASS?

• how much matter is in an object

• the force of gravity on that object

TRUE or FALSE: Gravity is the same on every planet.

• TRUE

• FALSE

Which of the following is not true about FRICTION?

• Friction is caused when two surfaces touch each other.

• Friction acts in the same direction as movement, helping objects speed up.

• Friction acts in the opposite direction as movement, helping objects slow down.

• Friction is a type of contact force.