Force Pairs investigation

Multiple Choice

A student drops a basketball onto the floor. According to Newton's 3rd law, why does the ball bounce?

• The student dropped the ball

• The earth pulls the ball down

• The ball presses down on the floor

• The floor presses up on the ball

Multiple Choice

The diagram shows a luggage cart being pushed by one person. Just a few minutes ago, he had someone else helping him push the cart. The two of them pushed with a force of 35 N, which caused the cart to move at a constant speed of 5 m/s. What is likely to happen now that the person is pushing the cart himself?

• The speed of the cart will decrease.

• The speed of the cart will not change.

• The cart will come to a complete stop.

• The speed of the cart will decrease to 4 m/s.

Multiple Select

What would factor would best determine succeeding in the challenge? Select two

• Force Pairs

• GPE

• Speed

Multiple Choice

What were the force pairs in this investigation ?

• The inclined plane and the ball

• The Car and the Tennis Ball

• The Rod and the Inclined Plane

Multiple Choice

What energy did we start with in the investigation?

• Kinetic

• Potential

Multiple Choice

Energy CAN be created or destroyed ?

• True

• False

Multiple Choice

What happened when the car hit the ball?

• There was an energy transfer from the car to the ball

• The car kept going forward and never stopped

• The ball kept going and never stopped

• There was an energy transfer from the ball to the car

Multiple Choice

Are there other force pairs in this investigation ?

• Yes, there are other force pairs l

• No the car and the ball were the only ones

Poll

How confident do you feel about this topic now?

• Very confident
• Somewhat confident
• Not confident