________________ forces cause the rope in tug-of-war to move in a certain direction.

Forces that work together and make no change in motion are called ______________.

Smooth surface cause ____________ friction.

You can find the speed of an object if you ______________ distance by time.

The roller coaster moves at a _____________________ speed.

A plane that flies steadily at 900 kilometers per hour is moving at a ___________________________.

Which of the following would not affect the motion of an object?

Ivannah and Irvine are playing volleyball. Ivannah misses to hit the ball. What causes the ball to fall to earth?

Which will make a bowling ball roll faster?

What always changes when an object is in motion?

is a noncontact force that pulls objects toward one another

is a noncontact force that pulls on, or attracts metal

a contact force that opposes the motion of an object

strongest near the magnets poles