Action Reaction

In the context of Newton's 3rd Law, what are force pairs?

• Two forces acting on the same object.

• Two forces that are equal in magnitude and opposite in direction.

• Two forces that cancel each other out.

• Two forces that act in the same direction.

Tags

NGSS.MS-PS2-1

Which of the following scenarios best illustrates Newton's 3rd Law?

• A ball rolling down a hill.

• A person sitting on a chair.

• A fish swimming by pushing water backwards.

• A leaf falling from a tree.

When a bird flies, it pushes air downwards with its wings. What is the reaction force?

• The air pushing the bird upwards.

• The bird moving forward.

• The bird's wings flapping.

• The bird's weight.

Tags

NGSS.HS-PS2-1

You cannot exert a force on a wall,

• unless Darth Vader holds out his hand

• unless the wall falls down

• unless the wall simultaneously exerts the same amount of force on you

• unless you have friction

Tags

NGSS.MS-PS2-1

When you drop a rubber ball on the floor it bounces back. The force on the ball to produce bouncing is by the?

• hand

• floor

• mass of the ball

• acceleration of the hand

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

When two objects interact, they apply forces to each other of equal magnitude and opposite direction. In other words, every action has an equal and opposite reaction.

• I don't get it.

• I GOT IT!

Tags

NGSS.MS-PS2-1

When a bird is flying, their wings are pushing DOWN against the air. In turn, the air pushes __________ against their wings allowing them to fly.

• DOWN

• UP

• FORWARD

• BACKWARD

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

When a person is skateboarding, their leg is pushing BACKWARD against the ground. In turn, the ground pushes __________ against their foot allowing them to skateboard.

• DOWN

• UP

• FORWARD

• BACKWARD

Tags

NGSS.MS-PS2-1

When a jellyfish is swimming, their body is pushing DOWN against the water. In turn, the water pushes __________ against their body allowing them to swim.

• DOWN

• UP

• FORWARD

• BACKWARD

Tags

NGSS.MS-PS2-1

When a flyboarder is flyboarding, the flyboard pushing DOWN against the water. In turn, the water pushes __________ against the flyboard allowing the rider to have fun.

• DOWN

• UP

• FORWARD

• BACKWARD

Tags

NGSS.MS-PS2-1