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Science > Science Unit 2 Test Review > Flashcards

Science Unit 2 Test Review Flashcards

1
Q

What is energy?

A

The ability to cause change or do work

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2
Q

All matter has _______.

A

energy

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3
Q

What does the Law of Conservation of Energy state?

A

Energy cannot be created or destroyed; it can only be stored or transformed.

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4
Q

What are the 2 types of energy?

A

Potential and Kinetic

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5
Q

What is potential energy

A

Stored energy

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6
Q

What is kinetic energy?

A

Motion energy

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7
Q

What are the 2 things needed for potential energy?

A
  1. Position- The higher the object, the greater the potential energy
  2. Mass- The more mass, the greater the potential energy
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8
Q

What are the 2 things needed for kinetic energy?

A
  1. Speed- the faster the object is, the greater the kinetic energy
  2. Mass- the greater the mass and speed, the greater the kinetic energy
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9
Q

What is the relationship between kinetic energy and potential energy?

A
  • The higher the potential, the lower the kinetic.
  • The hight the kinetic, the lower the potential.
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10
Q

What is the acronym for the forms of energy?

A

MRS. CHEN

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11
Q

What does the M stand for?

A

Mechanical

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12
Q

What are the forms of mechanical energy?

A

Potential, kinetic, elastic, and gravitational

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13
Q

What does the R stand for?

A

Radiant/ Solar

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14
Q

What does radiant/ solar mean?

A

energy that travels at light

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15
Q

What are some examples of radiant/ solar?

A

Radiant: Lightbulb
Solar: Sun

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16
Q

What does the S stand for?

A

Sound

17
Q

What does the C stand for?

A

Chemical

18
Q

What does the H stand for?

A

Heat/ Thermal

19
Q

What does the E stand for?

A

Electrical

20
Q

What does the N stand for?

A

Nuclear

21
Q

What is sound?

A

Vibrations of a substance

22
Q

What are some examples of sound?

A

Piano, Radio, Speaker

23
Q

What is chemical energy?

A

Energy stored between bonds of atoms

24
Q

What are some examples of chemical energy?

A

Batteries, food, gasoline

25
Q

What is heat?

A

Movement of molecules

26
Q

What are some examples of thermal energy?

A

Hairdryer, oven, iron

27
Q

What is electrical energy?

A

Positive and negative charges

28
Q

What are some examples of electrical energy?

A

lightning and electricity

29
Q

What is nuclear energy?

A

Stored in the nucleus of atoms

30
Q

What are some examples of nuclear energy?

A

nuclear power plant/ bombs

31
Q

All energy can _______________________
___________.

A

change from one form to another

32
Q

What is force?

A

-Push or Pull
-Has a direction
-Has strength (newtons)

33
Q

What is a newton?

A

Amount of force needed to move

34
Q

What is a balanced force?

A

-Equal and opposite
-No change in position
-No change in direction
-No change in motion

Science (2 decks)

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