Year 7 speed and gravity

Question 1

Speed =

Answer 1

Distance ➗ time

Question 2

Distance=

Answer 2

Speed ✖️time

Question 3

Time=

Answer 3

Distance ➗ speed

Question 4

Speed is measured in…

Answer 4

Metres per second

Question 5

Distance is measured in…

Answer 5

Metres

Question 6

Time is measured in…

Answer 6

Seconds

Question 7

On a distance time graph what does an upwards sloping line mean

Answer 7

Constant speed

Question 8

On a distance time graph what does a horizontal straight line mean

Answer 8

The person has stopped

Question 9

On a distance time graph what does a sloping line in an upwards curve mean?

Answer 9

Acceleration

Question 10

How is deceleration shown on a distance time graph?

Answer 10

A curve where the line rises but levels off

Question 11

Relative motion going in same directions=

Answer 11

Big No. - smaller No.

Question 12

Relative motion going in different directions =

Answer 12

Big No. + smaller No.

Question 13

Relative motion

Answer 13

Calculation of motion relative to another moving object.

Question 14

What are gravity, up thrust, water resistance, magnetic, static, pull, push, friction, compression and twist.

Answer 14

Forces

Question 15

Which of these are contact forces; gravity, up thrust, static, magnetic, water resistance, pull, push, friction, compression and twist?

Answer 15

Up thrust, water resistance, pull, push, friction, compression and twist

Question 16

Which of these are noncontact forces; gravity, up thrust, static, magnetic, water resistance, pull, push, friction, compression and twist?

Answer 16

Gravity, static and magnetic

Question 17

What is the gravitational field strength on Earth?

Answer 17

10 N/kg

Question 18

What is a gravitational field?

Answer 18

It is a place in which gravity is active.

Question 19

Why is gravity different on other planets?

Answer 19

Gravity changes by how close you are to the planet and the planet’s mass.