Science revision-forces and speed

Question 1

What isAir resistance/drag?

Answer 1

A force acting upon any object moving within the Earth’s atmosphere.

Question 2

What is a push/Pull?

Answer 2

A force exerted to move an object away or towards another object

Question 3

What is thrust?

Answer 3

A force caused by an engine

Question 4

what is weight?

Answer 4

The force that pulls objects towardsa the center of the Earth.

Question 5

What is Lift?

Answer 5

A force pushing upwards on an object in liquid

Question 6

What is upthrust?

Answer 6

A force pushing upwards on an object flying through the air.

Question 7

What is speed?

Answer 7

Distance/Time

Question 8

What is distance?

Answer 8

Speed multiplied by time

Question 9

What is Time

Answer 9

Distance/speed

Question 10

What are the characteristics of a streamlined shape?

Answer 10

1) rounded front
2) slowly tapering tail
3) Smooth shape with no projections

Question 11

What is weight measured in?

Answer 11

Newtons

Question 12

What forces oppose each other when something is floating

Answer 12

Upthrust and Gravity

Question 13

What is a force?

Answer 13

Anything that starts, maintains or decreases motion.

Question 14

What is a Newton Meter?

Answer 14

A piece of equipment used to measure somethings weight (N).

Question 15

kilograms

Answer 15

the unit for mass

Question 16

How do you convert grams to newtons?

Answer 16

You divide the grams by 100

Question 17

How do you work out something’s weight on earth with it’s mass?

Answer 17

You multiply it’s mass by 10

Question 18

What happens when the forces on an object is balenced?

Answer 18

The object is either stationary or moving at a constant speed