science motion

You can use rough or sticky things to _____________________ friction

• increase

• decrease

All pushes and pulls are__________________________

• forces

• motion

the pull of gravity is the object's ______________________________

• weight

• motion

When the position of an object no longer changes, motion ______________

• increases

• stops

People use slippery things to __________________________ friction

• increase

• decrease

when the forces of an object are __________________________ the object moves

• balanced

• unbalanced

An object is in _________________________________ when it changes position

• motion

• force

When the forces on object are _______________________, the object does not move.

• balanced

• unbalanced

A force that occurs when one object rubs against another object is...

• Weight

• Friction

• Gravity

• Speed

When an object changes it’s position , the object

• is in motion

• Is not moving

• Has no speed

• Has no weight