Energy transfers

Tony is riding in a roller coaster car. After the car reaches the highest point on the track, it begins moving downward. What happens to the potential energy of the car as it moves?

• It is destroyed and lost.
• It remains at a constant level.
• It is converted to kinetic energy.
• It increases as height decreases.

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NGSS.MS-PS3-2

Energy stored in fuel, matches of a battery is what type of energy?

• kinetic energy
• thermal energy
• electrical energy
• chemical energy

At which point(s) on the roller coaster is the gravitational potential energy at its maximum?

• A
• B
• C
• D

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NGSS.MS-PS3-2

What does the Law of Conservation of Energy state?

• Energy cannot be created or destroyed
• Nothing can exchange energy
• Energy will increase over time.
• Energy will decrease over time.

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What happens when the ball goes from the highest position to the lowest position

• PE and KE increases and decreases together

• Impossible to know without knowing the mass of the object

• the PE decreases while KE increases

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Heat is the movement of ______.

• radiation
• thermal energy
• cold
• fire

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What type of energy is in this picture?

• Kinetic
• Potential
• Chemical
• Sound

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Which object shows an energy transformation from electrical to mechanical?

• 
• 
• 
• 

A 0.40 kilogram bird is flying at a constant speed of 8.0 m/s. What is the bird's kinetic energy ?

• 3.2 J
• 4.2 J
• 2.0 J
• 12.8 J

Tags

NGSS.MS-PS3-1

A pitcher throws a 0.145 kg baseball at a velocity of 30.0m/s. How much kinetic energy does the ball have?

• 65.35 J
• 87.25 J
• 23.45 J
• 65.25 J

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NGSS.MS-PS3-1