Newton's Laws

Looking at the image. Decide if this is balanced or unbalanced.

• Unbalanced

• Balanced

Tags

NGSS.HS-PS2-1

A change in velocity over time is

• Scalar

• Speed

• Acceleration

• Motion

This question has two parts. Answer part A, then answer part B

A basketball player jumps off the floor, pushing down on the ground with their feet.

Part A: According to Newton's Third Law, what force allows the player to move upward?

• Inertia

• The downward forces applied by the player's feet.

• The reaction force exerted by the ground.

• The force of gravity.

Which of Newton's laws explains the player's continued upward motion after their feet leave the ground until gravity pulls them back down?

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

• Newton's Law of Universal Gravitation.

You push a 4 kg box with a force of 36 Newtons and it accelerates at 9m/s^2.

If you push a different box with a mass of 3 kg with the same force, what will be its acceleration?

• 3 m/s²

• 6 m/s²

• 9 m/s²

• 12 m/s²

Tags

NGSS.MS-PS2-2

A student pushes against a wall with 20N of force and the wall does not move. In this situation, the wall exerts -

• 0N of force.

• 20N of force

• Less than 20N of force.

• More than 20N of force.

Tags

NGSS.MS-PS2-2

Which of the following forces would result in a net force of 10N to the right.

• 5N to the right and 5N to the left.

• 10N to the right and 0N to the left.

• 15N to the right and 5N to the left.

• 8N to the right and 2N to the left.

• 20N to the right and 10N to the left.

Tags

NGSS.HS-PS2-1

The picture shows a woman skiing down a mountain. She is increasing her speed while skiing downhill. Which statements accurately describe the potential and kinetic energy of this skier?

• Kinetic energy increases. Potential energy remains constant.

• Kinetic energy increases. Potential energy decreases.

• Kinetic energy remains constant. Potential energy decreases.

• Kinetic energy remains constant. Potential energy increases.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which diagram correctly illustrates an unbalanced force being applied to an object?

• 
• 
• 
• 

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which of Newton's Laws relates to the action of the rider on horse number two?

• When an object is at rest, it will remain at rest.

• The amount of force is equal to mass times acceleration.

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

• An object in motion continues in the same direction and speed.

Tags

NGSS.MS-PS2-1