Astronomy and Physics

Question 1

Astronomy

Answer 1

The study of the universe

Question 2

Rotation

Answer 2

The spin of a body on its axis

Question 3

Revolution

Answer 3

The travel of one body around another

Question 4

Orbit

Answer 4

The path that a body follows around another

Question 5

Axis

Answer 5

An imaginary line on which the earth spins

Question 6

Satellite/moon

Answer 6

A natural or artificial body that revolves around a planet

Question 7

Light-year

Answer 7

The distance light travels in a year

Question 8

Astronomical Unit

Answer 8

The distance between the Earth and The Sun

Question 9

Star

Answer 9

A Large object made of gas the produces light & heat by nuclear fusion

Question 10

Black Hole

Answer 10

An area in space where the force of gravity is so strong that even light cannot escape

Question 11

Constellation

Answer 11

A group of stars that forms a recognizable shape from our perspective on Earth

Question 12

Day

Answer 12

One rotation of Earth’s axis

Question 13

Year

Answer 13

One revolution around the sun

Question 14

How long does it take for the Moon to orbit the Earth

Answer 14

A Month

Question 15

What term describes the phase in which less than half of the moon is visible.

Answer 15

Crescent

Question 16

What term describes the phase in which more than half of the moon is visible.

Answer 16

Gibbous

Question 17

What celestial object can be referred to as a ‘dirty snowball’

Answer 17

a comet

Question 18

7.785 x 10^8

Answer 18

778,500,000

Question 19

1,433,000,000

Answer 19

1.433 x10^9

Question 20

How long ago did the Big Bang happen

Answer 20

13.7 billion years

Question 21

When did our solar system form

Answer 21

4.7 billion years ago

Question 22

What will happen 5 billion years from now

Answer 22

sun will expand into red giant

Question 23

what will happen to the Sun after it becomes a red giant

Answer 23

It will blow up into a planetary nebula and the remaining core will be a white dwarf

Question 24

Meteoroid

Answer 24

A small particle from an asteroid or comet orbiting the Sun.

Question 25

Meteor

Answer 25

A meteoroid that is observed as it burns up in the Earth’s atmosphere – a shooting star.

Question 26

Meteorite

Answer 26

A meteoroid that survives its passage through the Earth’s atmosphere and impacts the Earth’s surface.

Question 27

What is a free body diagram

Answer 27

A simplified representation of an object that shows the forces acting on it.

Question 28

what does it mean when forces are unbalanced

Answer 28

an object is in motion

Question 29

Newton’s First Law

Answer 29

An object at rest remains at rest and an object in motion remain in motion unless acted upon by an unbalanced force.

Question 30

Newton’s second law

Answer 30

The acceleration of an object depends on the mass of the object and the amount of applied force.

Question 31

Newon’s Third law

Answer 31

Whenever an object exerts a force on a second object the second object exerts a equal and opposite force on the first object.

Question 32

The law of conservation of energy

Answer 32

The law that states that energy cannot be created or destroyed but can be changed from one form to another.

Question 33

Kinetic energy

Answer 33

the energy of an object that is due to the object’s motion

Question 34

potential energy

Answer 34

the energy that an object has because of position, shape or condition.