Identifying Forces

Mr. H, going against his better judgement, has decided to go bungee jumping. He leaps off a bridge and is nearing the bottom of his fall. What are the forces that are being exerted on him?

• Force on Gravity on Person

• Force on Air on Person

• Force on Elastic on Person

• Force on Normal Force on Person

• Force on Frictional Force on Person

• Label the force(s) that are keeping this book in place. (Note: To be considered a force, something must be acting on the object).

• F-Normal Force on Book

• F- Gravity on Book

• F- Air Resistance on Book

A soccer ball is kicked into the air at the goal. Label the forces as the ball reaches its maximum height.

• F Gravity on Ball

• F Air on Ball

• F Applied on Ball

• F Tension on Ball

A water skier is being towed across the lake by a cable. What are the forces being exerted on the skier?

• F Friction on Person

• F Air on Person

• F Gravity on Person

• F Normal Force on Person

• F Elastic Force on Person

A group of neighbourhood children play ice hockey. Unfortunately, the rink is on a slope. What forces are acting on the puck?

• A

• B

• C

The Music Department wants to move a piano up a flight of stairs. The movers tie a rope to the piano, and pull it up a ramp placed over the stairs. The ramp is very smooth (no friction). What forces are acting on the piano?

• A

• B

Assuming the pendulum in the figure consists of a massive bob hung on a light rope, what forces are acting on the bob?

• A

• C

• B

You take the elevator to the fourth floor. What forces are acting on you while in the elevator? 

• E

• D

• C

A pendulum swings in a horizontal circle. What forces are acting on it?

• D

• C

• E

You push two boxes down the hall over a rough floor. What forces are acting on box A?

• K

• J

• I

• H

• F