Show:
Very difficult
Not difficult
Newtons 3RD Law
Super duper difficult
Action and Reaction forces
100

If Timmy pushes a box up with 25N, what is the equal and opposite force?

The box pushes down on him with 25N

100

What does a balanced object mean?

Equal force being applied in opposite directions and the object wont move

100

A person jumping off a diving board doesn't exert any force on the board. TRUE OR FALSE.

FALSE

100

What does unbalanced mean?

Unequal forces applied on a object causing the object to move

100

Identify the action and reaction force-
A boat moves backward, the man steps off the boat

Action the man steps off the boat and the reaction is the boat moves backward

200

What does "N" stand for and mean in newtons 3rd law?

N stands for newtons and is the unit to measure force

200

The nozzle of a rocket is pointed downward so that as fuel is ignited, the exhaust pushes downward. Why is this arrangement necessary for a rocket to function properly?


  1. The rocket is protected from the heat of the exhaust.
  2. Burned fuel can be collected on the ground.
  3. As fuel is combusted, the rocket pushes the gases backward and the gases push the rocket forward.
  4. This allows the rocket to be steered properly.
     

3. As fuel is combusted, the rocket pushes the gases backward and the gases push the rocket forward.

200

What does Newtons 3RD Law state?

For every action there is an equal and opposite reaction.

200

Is a hit the same as a push or a pull?

Push

200

Identify the action and reaction force-
A engine pushes air backwards and a plane moves forward

Action is the engine pushing air backwards and reaction is plane moving forward

300

If Bob is standing on the ground, what is he doing to the ground? And is there any other force acting on him?

Bob pushes the ground down and the ground pushes up

300

Every Saturday morning, Jada plays tennis with her stepsister. Jada’s racket experiences a force of 25 N as it hits the ball. What is true about the force that the ball will experience?

  1. The ball will experience 25 N of force.
  2. The ball will experience 50 N of force.
  3. The ball will experience 10 N of force.
  4. The ball will not experience any forces.
  1. The ball will experience 25 N of force.
300

 When two ice skaters push off from each other, they glide in opposite directions. This is an example of Newtons 3rd Law. TRUE OR FALSE.

TRUE

300

When you jump on a trampoline, you push down and the trampoline pushes you back up. What is the action and reaction force?

Action is jumping and pushing the trampoline down and the reaction is the trampoline pushing up

300

Identify the action and reaction force-

A skater moves forward and pushes back on the ice

Action is a skater pushing back on ice and the reaction is moving forward

400

According to Newton’s third law, if someone jumps off a skateboard, then the skateboard will roll backward because–

  1. the mass of the skateboard is the same as the mass of the person who jumps off.

  2. the pull of gravity on the person is the same as it is on the skateboard, regardless of size.

  3. the air resistance on the person is great and the friction on the skateboard is small.

  4. for the force that sends the person forward, there is an equal force pushing back on the skateboard.

 

4. for the force that sends the person forward, there is an equal force pushing back on the skateboard.

400

A hammer hits a nail down with 50N, what happens?

The nail pushes up with 50N

400

happens to a skateboarder when they push back on the ground with their foot.

the ground pushes forward and the skateboard moves forward.

400

In newtons 3rd law when you apply force on a object, is it possible for the object to push back in the same direction with different force?

No because Newton's 3rd law says every action has a EQUAL and OPPOSITE reaction

400

Identify the action force-
A car moves forward

Action is someone hitting the gas pedal
500

Bill and Joe both push a box with the same force to the right, is this balanced?

No

500

Is a throw the same as a push or pull?

Push

500

What is the scientists name that created Newtons Laws

Sir Isaac Newton

500


A student is rowing a boat on a lake. Which of the following statements describes how the boat moves through the water?

1. The rowing motion that moves the water backward enables the boat to move
forward in the water.

2. More force is needed to move the boat than to move the water with the oar.

3. The action-reaction forces are equal and move in the same direction.

4. The action force is the boat moving through the water, and the reaction force
is the person rowing.

1. The rowing motion that moves the water backward enables the boat to move
forward in the water.

500

Identify the reaction force-
I jump on my bed

Reaction the bed sinks down