Physics Unit 1 Quiz Part 2

1. Identify two important types of energy.

• Potential energy

• Kinetic energy

• Polar energy

• Elastic energy

When books are lifted from the floor to the desktop, what kind of potential energy do they gain?

When a spring is stretched, what kind of potential energy does it gain?

What is the point called that is used to determine changes in energy?

Define energy.

Answer explanation

The capacity to do work

Who are the founders of the scientific method?

• Galileo Galilei

• Francis Bacon

• Albert Einstein

• Henry Galligan

What is a hypothesis?

Answer explanation

An educated guess

How does a hypothesis become a law?

Answer explanation

When it has been tested over and over again and has not been contradicted

It is not possible for a theory to change

• True

• False

1. Does a theory become stronger or weaker if it changes?

• Stronger

• Weaker