PHeT Energy Skatepark

When we increased the mass of the skater, how was the total/overall energy affected?

• Total energy increased

• Total energy decreased

• Kinetic energy increased ONLY

• Potential energy increased ONLY

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

Based on the information provided, could the skater gain more speed?

• No, because he has reached his maximum KE

• Yes, because he has not reached his maximum KE

• No, because he has not reached his maximum PE

• Yes, because he has reached his maximum PE

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

What is the skater's speed (even though the speedometer isn't pictured)?

• 0

• Unknown

• Above 0

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

What does thermal energy in this scenario affect most?

• Mechanical Energy

• Potential Energy

• Kinetic Energy

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which formula best demonstrates how velocity affects total overall mechanical energy in a system?

• Mechanical Energy = KE + PE

• PE = m * g * h

• KE = .5m * V^2

When does the ball have the greatest PE?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS3-2

When does the ball have the most thermal energy?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

NGSS.MS-PS3-5

When energy is converted, what happens to the total amount of energy in the system?

• Stays the same

• Increases

• Decreases

• Changes to zero

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

When does an object have NO kinetic energy?

• When it's at rest.

• When it's moving very slowly.

• When it has no electrical charge.

Select all of the objects that have potential energy. (You may click more than one answer!)

• 
• 
• 
• 

Tags

NGSS.MS-PS3-2