Test - Unit Flashcards

1
Q
  1. Where would this roller coaster have the greatest kinetic energy?
A

C

Unit Concept pg

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2
Q
  1. Green plants convert light energy from the sun into ____ during photosynthesis.
A

Chemical potential energy

Unit concept pg

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3
Q
  1. The picture below shows a person swinging a baseball bat, starting at point A. The gravitational potential energy of the bat would be the greatest at.
A

Point A

Unit Concept pg

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4
Q
  1. How much force is required to lift a rock a vertical distance of 8 m if 80 J of work were done?
A

10 N

Unit Concept pg

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5
Q
  1. Conduction is the transfer of heat energy by______ .
A

Electromagnetic waves

Unit Concept pg

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6
Q
  1. The diagram to the right shows four locations in a temperature field. The temperature of each location is given in degrees Celsius. Heat energy will normally flow from:
A

C to B

Unit Concept pg

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7
Q
  1. When oil is burned to produce electricity, the electrical energy produced is less than the potential energy in the oil. Which best explains this observation?
A

Some of the potential energy in oil is converted into forms of energy other than electricity.
Unit Concept pg

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9
Q
  1. Which pictures show the same type of thermal energy transfer?
A

They all show different types of transfer.

Unit Concept pg

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10
Q
  1. The rate at which work is done is ____.
A

Power

Unit Concept pg

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11
Q
  1. When an object is dropped what happens to potential and kinetic energy as it falls?
A

GPE goes down, KE goes up

Unit Concept pg

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12
Q
  1. When water at 10oC is heated to 20o C its kinetic energy
A

Increases

Unit Concept pg

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13
Q
  1. Through which of the following will convection most likely occur?
A

Liquids and gasses

Unit Concept pg

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14
Q
  1. The kinetic energy of an object increases as its ______ increases.
A

Velocity

Unit Concept pg

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15
Q
  1. This roller coaster car starts from rest and moves along the track. At what point does the roller coaster car have the greatest potential energy?
A

B

Unit Concept pg

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16
Q
  1. When you hold an ice cube, your hand feels cold because
A

heat flows from your hand to the ice cube.

Unit Concept pg

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17
Q
  1. As the time required to do a given amount of work decreases, the power developed
A

Increases

Unit Concept pg

18
Q
  1. Energy Transformations: A windmill would be an example of
A

Kinetic to electrical

Unit Concept pg