Motion Review

What happens the motion of an object when unbalanced forces act on that object?

• A. The object does not move
• B. Only object’s speed of motion will change
• C. Only the object’s direction of motion will change
• D. The object speed and/or direction of motion may change

Tags

NGSS.MS-PS2-2

What three things are important to describing the motion of an object?

• A. Position, force and direction
• B. Position, direction and speed
• C. Speed, force and friction
• D. Speed, direction and friction

Why do you think it is important to observe an object’s pattern of motion?

• A. It helps scientists study speed
• B. It helps scientists study forces
• C. It helps predict an object’s future motion
• D. It helps you determine balanced from unbalanced forces

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

“_________ is the change in an object’s_________ over time.”

• A. Acceleration, velocity
• B. Velocity, speed
• C. Velocity, acceleration
• D. Acceleration, distance

The momentum of an object depends on the object’s mass and speed. Which object has the greatest momentum?

• A. A lightweight and slow moving object
• B. A lightweight and fast moving object
• C. A heavy and slow moving object
• D. A heavy and fast moving object

Tags

NGSS.MS-PS3-1

According to this law, an object at rest will remain at rest and an object in motion will remain in motion unless acted on by unbalanced forces.

• 1st Law of Motion
• 2nd Law of Motion
• 3rd Law of Motion

According to this law, for every action there is an equal and opposite reaction.

• 1st Law of Motion
• 2nd Law of Motion
• 3rd Law of Motion

Tags

NGSS.MS-PS2-1

This law establishes the equation F=ma.

• 1st Law of Motion
• 2nd Law of Motion
• 3rd Law of Motion

Tags

NGSS.MS-PS2-2

This law is also known as the "Law of Inertia."

• 1st Law of Motion
• 2nd Law of Motion
• 3rd Law of Motion

According to this law, more force is needed to move heavier objects.

• 1st Law of Motion
• 2nd Law of Motion
• 3rd Law of Motion

Tags

NGSS.MS-PS2-2