force and motion

What pulls a ball back to earth?

• Gas
• Gravity
• Friction
• Molecules

If these boys are pulling with the same amount of force.  What will happen?

• The boy in blue will win.
• They will not move at all.
• The boy in red will win.
• Both will fall down.

The force that causes a ball to fall to the ground is ____________________________

• gravity
• lubricant
• friction
• motion

The measure of the force of gravity on your body is your _________________

• height
• length
• weight
• age

A _____________________ must be exerted on an object at rest to cause it to move.

• weight
• inertia
• force
• gravity

A push or pull that causes an object to move, stop, or change direction.

• force
• motion
• energy
• inertia

A _____ moves an object closer to you.

• push
• pull
• friction
• cat

_____ is the force that slows and stops motion between touching objects.

• Friction
• Gravity
• Pull
• Push

A _____ is a pull or a push.

• force
• friction
• gravity
• speed

What keeps the Moon in orbit around Earth?

• Earth's rotation.
• Earth's atmosphere.
• Earth's gravity.
• Earth's shape.