11/22- Energy Review

The PE of a magnet in the presence of another magnet is related to-

• Only how close the magnets are together
• Only the direction in which the poles point
• How close the magnets are together and how fast they are moving
• How close the magnets are together and which direction the poles point

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

NGSS.MS-PS3-2

Choose the position of the skater that best matches the provided description - All of the energy is potential, none is kinetic

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Choose the position of the skater that best matches the provided description -Half of the energy is potential, half is kinetic

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Choose the position of the skater that best matches the provided description -The skater has come to a complete stop, all energy has been converted to thermal energy

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Tags

NGSS.HS-PS3-4

If the thermal energy of a substance increases, its temperature will _________________

• Increase
• Decrease
• Stay the same

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The picture shows the swinging of a pendulum. What is the PE of the pendulum at the "end" of its swing (the image to the right) -Energy is conserved

• 10 J
• 0 J
• 5 J
• 7 J
• 1 J

A toy car is moving along with 0.4 joules of energy. If it's speed is doubled, then it's new kinetic energy is

• 0.1 J
• 0.2 J
• 0.8 J
• 1.6 J
• still 0.4 J

Tags

NGSS.HS-PS3-1

A glider is flying through the air, it has 0.8 joules of potential energy. If the speed is doubled, and the height is doubled- the new potential energy is...

• 1.6 joules
• 0.2 joules
• 0.4 joules
• 3.2 joules
• 0 joules

Tags

NGSS.HS-PS3-1

Which would ALWAYS be true of an object possessing a kinetic energy of 0 joules

• It is on the ground
• It is moving
• It is above the ground
• It is accelerating
• It is not moving

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

The total mechanical energy of an object is the _________

• Kinetic energy minus the potential energy of the object
• The initial kinetic energy plus the initial energy of the object
• Kinetic energy plus the potential energy of the object at any instant during it's motion
• Final amount of kinetic energy and potential energy minus the initial amount of kinetic and potential energy

Tags

NGSS.HS-PS3-2