Forces and Motion

Front

When you slide a box across the floor, what force does your push have to be greater than for motion to occur?

Back

Frictional force

Front

What makes a good reference point?

Back

Something that is stationary (not moving)

Front

What causes a change in an object's motion?

Back

Unbalanced forces

Front

In the picture, what force is acting upward on the skydiver?

Back

Air resistance

Front

In the picture, what force is acting downward on the skydiver?

Back

Gravity

Front

A cyclist rides north past an old man sitting on a bench. What direction will the cyclist see the old man moving? Assume that the old man is sitting still.

Back

South

Front

What is a good reference point to describe the motion of the Earth within our solar system?

Back

The sun

Front

What is the Net Force on the box shown below?

Back

17N to the right

Front

What is the Net Force on the box shown below?

Back

0N

Front

Why does the ball accelerate away from the bat more than the bat accelerates away from the ball during a baseball game?

Back

The ball has less mass, so the equal force on the ball and the bat causes greater acceleration of the ball.