PHeT Energy Skatepark

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

When does the ball have the greatest PE?

• 1

• 2

• 3

• 4

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NGSS.MS-PS3-2

When energy is transformed or changed, 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

 Do you think the Skater will make it over the first hump?
(No friction on the track)

• No, because his potential energy will be converted to thermal energy
• No, because he doesn’t have enough potential energy
• Yes, because all of his potential energy will be converted to kinetic energy
• Yes, because some of his energy will be potential and some kinetic

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5

 Do you think the Skater will make it over the first hump?
(No friction on the track)

• No, because his potential energy will be converted to thermal energy
• No, because he doesn’t have enough potential energy
• Yes, because all of his potential energy will be converted to kinetic energy
• Yes, because some of his energy will be potential and some kinetic

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

In the next moment, the KE piece of the pie gets larger, then

• The Skater is going up hill (left)
• The Skater is going down hill (right)
• There is no way to tell

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

In the next moment, the KE piece of the pie gets larger, then

• The PE part stays the same
• The PE part gets larger too
• The PE part gets smaller
• There is no way to tell

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

In the next moment, the KE piece of the pie gets larger, then

• The Skater will be going faster
• The Skater will be going slower
• There is no way to tell

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

At which point is potential energy greatest?

• W
• X
• Y
• Z

Tags

NGSS.MS-PS3-2