Questions

Question 1

Give the definition - the attraction (pulling together)

Answer 1

Electrostatic attraction

Question 2

An engineer. 20,000N , 50,000PA , area m2

Answer 2

0.4

Question 3

Units for force

Answer 3

N

Question 4

Units for area

Answer 4

M2

Question 5

Units for pressure

Answer 5

Pascal

Question 6

Mass

Answer 6

Kg, pounds and grams

Question 7

Units for volume

Answer 7

Cubic

Question 8

An engineer, 20,000 N , 50,000PA , area m2

Answer 8

0.4m2

Question 9

To push away

Answer 9

Repel

Question 10

Jackie, different materials, sink or float

Answer 10

Shape of material

Question 11

Foggy field, size 3, size 8, outcome?

Answer 11

Person with size 8 shoes would sink less

Question 12

A gas exerts a pressure on a wall of its container because particles

Answer 12

Collide with

Question 13

Upwards force exerted on an object in water measured in N

Answer 13

Upthrust

Question 14

Weight of 50N , upthrust is 60N, will it float?

Answer 14

Yes

Question 15

800N , 4m2 , calculate pressure

Answer 15

200

Question 16

Less likely to hold static charge

Answer 16

Copper wire

Question 17

Furniture designer, 4legs 4m2, 3legs 6cm2

Answer 17

Second one - total surface area is greater

Question 18

Mass of a material per unit volume

Answer 18

Density

Question 19

Mass of 60kg , Jupiter , 27N/Kg

Answer 19

1620kg

Question 20

Magnets / objects to repel each other

Answer 20

South to south and north to north

Question 21

2 pieces of information to calculate pressure , solid object

Answer 21

Area of object and weight of object

Question 22

N/m2 , 240N , 12m2

Answer 22

20

Question 23

The force of gravity acts on things that have

Answer 23

Mass

Question 24

Earth’s gravitational field is false?

Answer 24

The earth’s gravitational field has no effect once you leave

Question 25

Ethanol, 3 are correct

Answer 25

Some objects which float When an object When an object

Question 26

Where are you going to find an electrostatic field

Answer 26

Around a charged object

Question 27

Heavy person, lake

Answer 27

Upthrust is about same weight

Question 28

The force of gravity acting over an object

Answer 28

Weight

Question 29

Skateboarder, 900N , 0.001m2

Answer 29

225,000

Question 30

20g/cm3 , 1g/cm3 , density

Answer 30

No

Question 31

Aircrafts, pressurised, what’s the main reason

Answer 31

At high altitudes, low atmospheric pressure, less oxygen

Question 32

Jackie, independent variable

Answer 32

Type of material

Question 33

30N, will it float

Answer 33

Not enough information

Question 34

2 statements about magnetism is true

Answer 34

Alloys of cobalt and 2 magnets can attract/repel depending on orientation

Question 35

Pressure in liquid

Answer 35

Acts in all directions