Energy Motion and Force

The ____ is the speed of an object in a given direction

• Acceleration

• Speed

• Velocity

• Torque

Acceleration is the rate of velocity change during a certain period of time.

• True

• False

Newton's third law states for every action their is an equal or opposite reaction. Which is the best example

• The air rushing out of a balloon, causing it to move across the room. 

• Flying forward in you seat when the brakes a slammed on.

• A weight lifter dropping the bar.

• A softball flying on the air

Tags

NGSS.MS-PS2-1

When a car suddenly stops at a red light, a pizza lying in the passengers seat flies in to the windshield. Why does the pizza fly forward?

• The pizza loses its backward force

• The pizza's inertia causes it to continue moving. 

• The friction of braking transfers energy to the pizza. 

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which word describes a push or pull on an object?

• Position

• Hypothesis

• Mass

• Force

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A fan is turned off in the living room. The fan slows down and comes to a rest as the forces become _______

• Frictional

• Balanced

• Unbalanced 

• Restricted

Looking at the roller coaster, were does the cart have the most potential energy?

• A

• B

• C

• D

Tags

NGSS.MS-PS3-2

Which is an example of potential energy?

• A girl on a diving board

• A boy swimming

• A girl hitting a volleyball

• A boy running around the pool

Tags

NGSS.MS-PS3-2

The rocket ship uses giant gas tanks to take off into outer space. What is the progression of the 3 energy transformation?

• Electrical - Light - Mechanical

• Mechanical - Thermal - Chemical 

• Chemical - Thermal - Mechanical

Two trucks with different masses travel at the same speed down a hill toward a red light. What will happen when both trucks apply their brakes at the same time?

• The truck with the smaller mass will require less force to stop than the car with the larger mass.

• The truck with the small mass will take longer to stop than the car with the larger mass. 

Tags

NGSS.MS-PS2-2