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Physics Variables, Constants, Laws, Models, Theories

Total questions: 9

Worksheet time: 5mins

Name
Class
Date
1.

What are x, z, a, m, t...

a)

constants

b)

variables

c)

equations

d)

laws

2.

What are 5, 0.001, 14, and 1 million?

a)

variables

b)

constants

c)

laws

d)

theories

3.

What is PV = nRT or F = ma or V = d/t?

a)

variables

b)

constants

c)

laws

d)

theories

4.

Relativity, Evolution, Quantum Mechanics, Plate Tectonics are examples of ___________.

a)

variables

b)

constants

c)

laws

d)

theories

5.

Which are more complicated?

a)

theories

b)

laws

6.

Which are usually simple equations?

a)

theories

b)

laws

7.

Can theories or laws be ever completely proved to be true?

a)

No because we don't really know what truth is

b)

No because only laws can be proved to be true

c)

No because there might be a future experiment which proves them wrong

d)

Yes because once they are proved right this is now truth forever

8.

A letter which represents something which can have different values is called a _____.

a)

constant

b)

variable

9.

A letter which represents something that is only one value is called a ____.

a)

variable

b)

constant