newtons third law

A baseball player hits a ball with 400 N of force. How much force does the ball exert on the bat?

• 300

• 400

• 500

• Not enough info to tell

Tags

NGSS.MS-PS2-1

When you jump up, you push the earth downwards. Why can't you tell that the earth has moved?

• The force of you jumping up doesn't actually push the earth down.

• The earth has much more mass so it doesn't move at all

• The earth is firmly rooted

• The earth has much more mass so you can't tell that it moved

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-4

In space, rockets move by shooting air backwards. What moves faster the air or the ship?

• Neither, they both move at the same speed

• The ship because it has more mass

• The air because it has less mass

• The ship because it is moving forwards

Tags

NGSS.MS-PS2-1

When you hit a tennis ball with a racket...

• The ball exerts more force on the racket

• The ball and racket exert the same force on each other

• The racket exerts more force on the ball

• It depends on how hard you hit it

Tags

NGSS.MS-PS2-1

Two students with different masses are sitting in roll-y chairs. The lighter one uses his feet to push the other

• The lighter student will move faster because he has less mass

• The heavier student will move more because he is being pushed

• They will move with the same speed

• The heavier student shouldn't move at all

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What causes a jet ski to move forward?

• The motor pushes the jet ski forward

• The water pushes the jet ski forward

• The person pushes the jet ski forward

• Gravity pushes the jet ski forward

Tags

NGSS.MS-PS2-2

Is it possible to move an object upwards by exerting a force equal to its weight?

• No, you have to apply more force than its weight

• No, you need to apply acceleration, not force

• Yes, any force you use will cause it to move at least a little

• Yes, but only if it was already moving upwards

Tags

NGSS.MS-PS2-2

Force always come in________

• waves

• triplets

• pairs

Tags

NGSS.MS-PS2-1

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

• The light one

• They exert the same force on each other

• The heavy one

Tags

NGSS.MS-PS2-1

When a small car pushes a big truck, the truck applies an equal and opposite force on the car.

• False

• True

Tags

NGSS.MS-PS2-1