Energy stores Flashcards

(26 cards)

1
Q

What is an energy store?

A

An energy store is a system or object that holds energy in a specific form.

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2
Q

Name the three main types of energy stores.

A

Kinetic energy, gravitational potential energy, and elastic potential energy.

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3
Q

True or False: Chemical energy is a type of energy store.

A

True

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4
Q

Fill in the blank: The energy stored in an object due to its motion is called ______ energy.

A

kinetic

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5
Q

What type of energy is stored in a compressed spring?

A

Elastic potential energy.

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6
Q

What is gravitational potential energy dependent on?

A

The height of an object above the ground and its mass.

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7
Q

Multiple Choice: Which of the following is NOT an energy store? A) Thermal B) Solar C) Nuclear D) Speed

A

D) Speed

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8
Q

Short Answer: Provide an example of a chemical energy store.

A

Batteries.

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9
Q

What is the formula for gravitational potential energy?

A

GPE = mass × gravity × height (GPE = mgh).

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10
Q

True or False: All energy stores can be converted into kinetic energy.

A

True

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11
Q

Fill in the blank: The energy stored in food is an example of ______ energy.

A

chemical

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12
Q

What type of energy does a moving car possess?

A

Kinetic energy.

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13
Q

Multiple Choice: Which energy store is associated with an object’s position in a gravitational field? A) Kinetic B) Gravitational Potential C) Thermal D) Elastic

A

B) Gravitational Potential

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14
Q

Short Answer: What energy store is primarily involved in a hydroelectric power station?

A

Gravitational potential energy.

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15
Q

True or False: Elastic potential energy can be found in rubber bands.

A

True

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16
Q

Fill in the blank: The energy stored in a battery is a form of ______ energy.

17
Q

What happens to energy stores when energy is transferred?

A

Energy is converted from one store to another.

18
Q

Multiple Choice: Which energy store is related to temperature? A) Kinetic B) Thermal C) Chemical D) Nuclear

19
Q

Short Answer: Describe what happens to the gravitational potential energy of an object as it falls.

A

It decreases as it converts to kinetic energy.

20
Q

True or False: Energy cannot be created or destroyed, only transformed.

21
Q

Fill in the blank: A stretched bow possesses ______ energy.

A

elastic potential

22
Q

What type of energy store does a battery represent?

A

Chemical energy.

23
Q

Multiple Choice: Which of the following is an example of kinetic energy? A) A book on a shelf B) A falling apple C) A stretched spring D) A parked car

A

B) A falling apple

24
Q

Short Answer: How is energy stored in a nuclear power plant?

A

As nuclear energy in the form of nuclear reactions.

25
True or False: An object at rest has kinetic energy.
False
26
Fill in the blank: The energy associated with the motion of particles in an object is called ______ energy.
thermal