Motion In The Universe

Question 1

What is the equation to find out average SPEED?

Answer 1

Average speed = distance over time

Question 2

What is the equation to find out the DISTANCE?

Answer 2

Distance = time x speed

Question 3

What is a universe?

Answer 3

A universe is a large collection of billions of galaxies

Question 4

What is a galaxy?

Answer 4

A large collection of billions of stars

Question 5

Where is our solar system located?

Answer 5

In the Milky Way galaxy

Question 6

Weight (W) = ? x ?

Answer 6

Weight = Mass x Gravitational field strength (W = m x g)

Question 7

What is the equation to find out TIME TAKEN?

Answer 7

Time taken = distance travelled / average speed

Question 8

Average Velocity = ?

Answer 8

u + v / 2

Question 9

Average velocity = ? / ? (The more important & useful version)

Answer 9

Average velocity = total distance / total time taken

Question 10

Gradient of a graph = rise / run = ∆ distance / ∆ time = ?

Answer 10

= velocity

Question 11

Original period (T) = distance travelled / average speed = circumference of the orbit / orbital speed

Answer 11

T = 2πr / v