Deck 4: Scientific Foundations of Astronomy

Question 1

An idea proposed to explain observations is called a ___________.

A) hypothesis
B) theory
C) law
D) principle

Answer 1

hypothesis

Question 2

Light is made of elementary particles called _________.

A) protons
B) electrons
C) photons
D) charges

Answer 2

photons

Question 3

A schematic representation of a real system that illustrates its most essential relationships and interactions is a

A) hypothesis
B) theory
C) law
D) model

Answer 3

model

Question 4

The _______________ describes the properties of the particles that are found in our universe.

Question 5

Particles that make up protons and other particles are ______________.

Question 6

The strongest force is gravity.

Question 7

Once a hypothesis has been tested and verified by observations it is called a theory.