Action and Reaction Force Pairs

When a heavy football player and a light one run into each other, who exerts more force?

• The heavy one
• The light one
• They are equal
• there is no such thing as force

Tags

NGSS.MS-PS2-1

How much force is applied to Ben's hand if he hits the wall with a force of 1,000 N?

• 500 N
• 1,000 N
• 2,000 N
• Not possible to determine.

Tags

NGSS.MS-PS2-1

When a cannon fires a cannonball we observe Newton's third law. Which force is the reaction force?

• The cannon moving forward
• The cannonball moving forward
• The cannon moving backward
• The cannonball moving backward

Tags

NGSS.MS-PS2-1

Forces do not occur in pairs.

• True
• False

Tags

NGSS.MS-PS2-1

The ____ of an object is the force of gravity on the object.

• mass
• weight
• volume
• density

Tags

NGSS.MS-PS2-4

A book rests on a table. The force of gravity pulls down on the book with a force of 20 newtons. What prevents the books from accelerating downward at 9.8 m/sec²

• The table presses back up on the book with an equal and opposite force of 20 newtons.

• The table presses back up on the book with a force greater than 20 newtons.

• The table and the book together are accelerating downwards at 9.8 m/sec²

Tags

NGSS.MS-PS2-4

Action reaction forces do not cancel each other out because the forces act on _____________ objects.

• force
• the same
• different
• none of the above

You hit a wall with a stick.  The equal but opposite reaction is _____

• the wall pushes against you
• the stick pushes against you
• you push against the stick
• the wall pushes against the stick

Tags

NGSS.MS-PS2-1

A bus hits a bug and the bug splatters on the windshield, which force is greater?

• The Bus
• The Bug
• They're the same
• Gravity acting on the bus

Tags

NGSS.MS-PS2-1

When gravity pulls a skydiver towards the Earth, the reaction force is...

• The gravity of the skydiver pulling the Earth towards them
• Air resistance
• The weight of the skydiver
• Drag

Tags

NGSS.MS-PS2-4