Force and Motion Review

Front

A box is pulled right by two people: 6N and 3N. Net force and direction?

Back

9N, right

Front

A car moves right with a 35 N force; wind blows left with 15 N. Net force?

Back

20 N

Front

A student on a skateboard pushes against the ground, causing it to move. With a friend on board, it slows down, requiring more force to move again. After hitting a curb, the skateboard stops, but the student flies off. Identify the unbalanced forces affecting the skateboard.

Back

The skateboard accelerates down a slope due to gravity.

Front

Skateboard moving at constant speed on flat surface.

Back

Balanced forces are present.

Front

Force affecting car control on icy roads

Back

unbalanced force

Front

A car skids on ice due to unbalanced forces. Best supporting statement:

Back

The icy road does not supply enough friction to the car's tires.

Front

Newton's 3rd law: action-reaction. Demonstrated by:

Back

air rushing out of a balloon, causing it to move across the room

Front

Four students push carts with sports equipment. Each pushes with equal force. Which cart has the greatest acceleration change?

Back

12 tennis racquets, m = 10 kg

Front

A book slides forward when a car stops suddenly. Why?

Back

The book's inertia causes it to continue moving.

Front

A 0.60 kg basketball is acted upon by a 10.8 N force. What is its acceleration?

Back

18 m/s²