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Science Progress Paper 2

Total questions: 40

Worksheet time: 23mins

Name
Class
Date
1.

Gas particles are

a)

really bouncy and packed together

b)

packed together and don't move

c)

really spread out and fast

2.

Liquid particles

a)

are a little spread out and move a little fast

b)

really packed together

c)

are a little spread out and don't move at all

3.

Solid particles are

a)

packed together and vibrate

b)

very fast

c)

are really spread out and don't move at all

d)

very slow

4.

H20

a)

Element

b)

Compound

c)

Mixture

d)

Solid

5.

How many atoms?

CO2

a)

3

b)

4

c)

7

d)

1

6.

Two of these have 5 atoms

a)

H2O

b)

CO2

c)

NaCl

d)

C5

e)

H2O3

7.

How many Atoms? (Capital Letters marked as 1 element)


CuSO4

a)

2

b)

4

c)

7

d)

6

8.

Saltwater

a)

element

b)

plasma

c)

mixture

d)

compund

9.

Carbon Dioxide

a)

element

b)

mixture

c)

compound

d)

liquid

10.

Water

a)

Solid

b)

Compound

c)

Element

d)

Mixture

11.

only two of these are elements

a)

Carbon Dioxide

b)

Water

c)

Hydrogen

d)

Carbon Monoxide

e)

Oxygen

12.

How many Atoms? (Capital Letters marked as 1 element)


O2SO6

a)

2

b)

4

c)

7

d)

6

e)

9

13.

A circuit had a resistor of 8 and a current of 9. How much voltage does the circuit need?

a)

72V

b)

67V

c)

99V

d)

74V

14.

What is the current of a 27V circuit if the resistance is 9 Ohms?

a)

2

b)

8

c)

3

d)

99

15.

Resistance is measured in

a)

Ohms

b)

Newtons

c)

Litres

d)

Kilograms

16.

An electric heater works by passing a current of 100 A through a coiled metal wire, making it red hot. If the resistance of the wire is 8.5 ohms, what voltage must be applied to it?

a)

85.5 V

b)

55.6 V

c)

850 V

d)

22 V

17.

A [ ____ ] is a closed path that consists of circuit components in which charge from a power supply of flow.

a)

circuit

b)

wire

c)

cell

d)

battery

18.

Circuit components

a)

cells

b)

switches

c)

bulbs

d)

resistors

e)

all of the above

19.

Cells are also called

a)

batteries

b)

bulbs

c)

circuits

d)

wires

20.

Ammeters are placed in a series circuit

a)

True

b)

False

21.

Potential difference is measured in

a)

Volts

b)

Ohms

c)

Metres

d)

Newtons

22.

The current of a circuit is measured in

a)

amperes

b)

volts

c)

grams

d)

litres

23.

Volt meters are placed in a

a)

parallel circuit

b)

series circuit

24.

Joules are equal to

a)

the weight multiplied by the height

b)

the weight divided by the width

c)

the width multiplied by the height

d)

the weight multiplied by the length

25.

A man weighing 800N climbs 5m up a set of stairs. How much energy does he transfer to his energy store?

a)

4000J

b)

400J

c)

4J0

d)

0.4J

e)

0.04J

26.

A cyclist pulls the brake levers and exerts a force of 50N at the brake blocks. If she travels 4m while stopping, how much energy has been transferred from her kinetic store to the thermal store of the environment?

a)

400J

b)

455J

c)

888J

d)

200J

27.

When ice is put into a glass of guava juice, how does the thermal store of energy change in the ice and juice?

a)

The ice gets warmer as the warm molecules of the guava juice bump into the cold ice molecules, giving it some energy.

b)

The guava juice gets colder as the cold molecules of the ice bump into the warm juice molecules, taking away some energy.

28.

When ice is put into a glass of guava juice, what happens to the total thermal store energy of the glass

a)

it stays the same

b)

it decreases

c)

it increases

29.

Which chemicals in the food you eat act as fuels?

a)

protein

b)

fats

c)

carbohydrates

d)

all of the above

30.

total energy in (J)=useful energy out (J)+wasted energy out (J)

a)

This is correct

b)

This is wrong

31.

efficiency (%)=useful energy out (J)/total energy in (J) times 100

a)

This is correct

b)

This is wrong

32.

Gravitational store

a)

a ball placed at a high shelf

b)

a hot drink

c)

a moving car

d)

a stretched elastic band

33.

A crab is a

a)

crustacean

b)

mammal

c)

reptile

d)

fish

34.

A wasp is a(n)

a)

insect

b)

mammal

c)

arachnid

d)

amphibian

35.

Select the odd one out

a)

bee

b)

cat

c)

dog

d)

sheep

36.

Which one is the odd one out?

a)

spider

b)

deer

c)

antelope

d)

badger

37.

odd one out?

a)

badger

b)

snake

c)

komodo dragon

d)

iguana

38.

insects, crustaceans, and arachnids are

a)

invertebrates

b)

vertebrates

c)

reptiles

d)

solids

39.

mammals, fish, reptiles, and birds are

a)

vertebrates

b)

invertebrates

c)

plants

d)

ameoba

40.

echinoderms include

a)

starfish

b)

brittle star

c)

weevil

d)

slug

e)

all of the above

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