Easter Test

Question 1

Universe:

Answer 1

Everything that we are aware of

Question 2

Galaxy:

Answer 2

Large collection of solar systems

Question 3

Solar systems:

Answer 3

A star with planets

Question 4

A star:

Answer 4

A ball of hydrogen that is undergoing nuclear fusion- produces light and heat

Question 5

A planet:

Answer 5

Orbits stars

Question 6

Satellites:

Answer 6

Orbit planets

Natural satellite = moon

Question 7

Asteroids:

Answer 7

Rocks that orbit stars

Question 8

Comets:

Answer 8

Dirty snowballs that orbit stars

Question 9

Meteors:

Answer 9

Rocks that move through space- burn up in our atmosphere. We call them shooting stars

Question 10

What does gravity do?

Answer 10

Holds all of this objects (comets, asteroids etc.) together and causes orbits

Question 11

Large mass=

Answer 11

Large gravitational pull

Question 12

What is the equation that links mass, weight, gravitational constant

Answer 12

W=mg

Question 13

Calculate the weight of a 150kg mass

Answer 13

W= 150 x 10

= 1,500

Question 14

Calculate the weight of a 400kg mass

Answer 14

W= 400 x 10

= 4000N

Question 15

Calculate the mass of a 750N weight

Answer 15

750= m x 10
M= 750 / 10
= 75 kg