Do Now - 10/25 - Newtons 3rd Law

Newton’s law states that for every action, there is an ________ reaction.

• unequal and opposite

• equal and similar

• stronger and opposite

• equal and opposite

Tags

NGSS.MS-PS2-1

A book pushes down on a table with a force of 5N, the table..

• Pushes back with a force of 5N

• Pushes back with a force less than 5N

• Pushes back with a forcec greater than 5N

• Does nothing. A table has no force.

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

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-PS2-2

NGSS.MS-PS2-4

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

A photograph of a bird perched on a fence post is shown.

Which description best identifies the action-reaction pair between the bird and the fence post?

• Action: The force of the bird on the wires

  Reaction: The force of the wires on the fence post

• Action: The force of the wires on the fence post

  Reaction: The force of the fence post on the bird

• Action: The force of the fence post on the bird

  Reaction: The force of the bird on the wires

• Action: The force of the bird on the post

  Reaction: The force of the fence post on the bird

Tags

NGSS.MS-PS2-1

An ice skater pushes off a wall and glides backwards for a few meters and then stops.

Which statement best describes an action-reaction force pair in this statement?

• The friction of the ice decreases as the blade of the skate moves on the ice.

• The wall pushes on the skater as the skater pushes on the wall.

• The ice skates slow down, and the skater stops

• The skaters exerts a force on the wall, and blade exerts a force on the ice.

Tags

NGSS.MS-PS2-1

A student kicks a soccer ball. According to Newton's 3rd law, what is the "reaction" in this situation

• The soccer ball flies off into the air

• You can hear the soccer ball being kicked

• The soccer ball exerts a force back on the student's foot

• Other students chase after the soccer ball

Tags

NGSS.MS-PS2-1

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

Tags

NGSS.MS-PS2-1

A bug hits into the windshield of a car. How do the forces on the bug and windshield compare?

• The force on the bug is greater

• The force on the windshield is greater

• The forces on the bug and windshield are equal in magnitude.

Tags

NGSS.MS-PS2-1