Gravity, Friction, Inertia

Because of inertia, a moving object will keep ________.

• at rest
• moving
• in one spot
• inertia 

Because of inertia, a resting object will remain at ________.

• rest
• a constant speed
• school
• inertia 

the tendency of an object to resist a change in its motion

• acceleration
• inertia
• mass
• frame of reference

Objects with greater _________ also have greater inertia.

• speed
• mass
• temperature
• friction

The amount of matter in an object is called ______________.

• displacement

• mass

• friction

• friction

What two forces affect gravity?

• mass and inertia

• mass and distance

• mass and force

• mass and weight

As distance between objects increases, the pull of gravity...

• increases

• decreases

• Stays the same

When you travel to a planet, like Jupiter, where the force of gravity is greater than on Earth, _____

• You will "weigh more" than on Earth

• You will "weigh less" than on Earth

• You will have "less mass" than on Earth

• You will have "more mass" than on Earth

Inertia tells us that we need ____________ to get an object moving or to make it stop.

• a force

• gravity

• friction

• strength

a force that opposes motion between any surfaces that are touching

• velocity
• friction
• inertia
• position