What does Newton's Third Law state?

• For every action, there is a reaction.

• For every action, there is an equal and opposite action.

• For every force, there is a force that cancels it out.

• or every force, there is an equal reaction.

Tags

NGSS.MS-PS2-1

In the lab activity, what prediction should you make before throwing the ball?

• Whether the ball will hit the ground.

• What will happen to you on the skateboard.

• How far the ball will travel.

• Whether you will catch the ball.

Which of the following is an example of an action-reaction force pair?

• Gravity pulling a ball down.

• A person sitting in a chair.

• A space shuttle pushing against the ground.

• A car moving forward.

Tags

NGSS.MS-PS2-1

What materials are needed for the home lab described in the video?

• A skateboard and a heavy ball.

• A bicycle and a tennis ball.

• A skateboard and a light ball.

• A scooter and a heavy ball.

What happens when you throw a ball forward while sitting on a skateboard?

• You move forward with the ball.

• You stay still.

• You move backward.

• ou fall off the skateboard.

Tags

NGSS.MS-PS2-1

How can you test the effects of friction during the lab?

• Change the weight of the ball.

• Throw the ball harder.

• Move the skateboard to a grassy surface.

• Sit still while throwing the ball.

Tags

NGSS.MS-PS2-2

Which scenario represents balanced forces?

• A hammer hitting a nail.

• A tug of war with equal forces from both teams.

• A rocket taking off.

• A skateboarder pushing off the ground.

What occurs when two forces are equal and opposite?

• The object accelerates.

• The object moves in the direction of one force.

• The object remains stationary.

• The object moves randomly.

Tags

NGSS.HS-PS2-1

What type of forces act on two different objects?

• Balanced forces.

• Action-reaction force pairs.

• Frictional forces.

• Gravitational forces.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-4

Which of the following best describes unbalanced forces?

• Forces that cancel each other out.

• Forces that cause an object to move.

• Forces that are equal in strength and opposite in direction.

• Forces that have no effect on motion.

Tags

NGSS.MS-PS2-2