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year 7 rotation 3

Total questions: 55

Worksheet time: 31mins

Name
Class
Date
1.

Sound is made when a source of energy forces the matter around it to __________.

a)

Vibrate

b)

Amplitude

c)

Stay still

d)

Pitch

2.

Sound waves CANNOT travel through which of these:

a)

Paper

b)

Milk

c)

Outer space

3.
High Amplitude =__________________
a)
Louder sounds
b)
Quieter Sounds
4.
Low Amplitude = ______________
a)
Quieter Sounds
b)
Louder sounds
5.
Low frequency = _______ Pitch
a)
Low
b)
High
6.
High frequency = _______ Pitch
a)
High
b)
Low
7.
In General Sound waves travel the fastest in __________
a)
solid
b)
liquid
c)
Gas
d)
plasma
8.
In General Sound waves travel the slowest in __________
a)
solid
b)
liquid
c)
Gas
d)
Plasma
9.

Why you can't hear an explosion or any other sound in space?

a)

Space is very far from us

b)

Space is vacuum (no air)

c)

Space has no energy

10.

Light travels....

a)

In a straight line

b)

In a curved line

c)

Really slowly

11.

What happens to light when is reflects

a)

light bounces

b)

light bends

c)

light is taken in

12.

What happens to light when is refracts

a)

light bounces

b)

light bends

c)

light is taken in

13.

What happens to light when it is absorbed?

a)

light bounces

b)

light bends

c)

light is taken in

14.

What is the ray of light that strikes the surface of an object?

a)

incident ray

b)

reflected ray

c)

normal ray

d)

normal

15.
....................... - the imaginary line perpendicular to the surface.
a)
Normal
b)
Angle of incidence 
c)
Angle of reflection
16.
What is B?
a)
Angle of incidence
b)
Angle of reflection
c)
Incident ray
d)
Reflected ray
17.

What is C?

a)

angle of incidence

b)

angle of reflection

c)

incident ray

d)

reflected ray

18.

What is E?

a)

angle of incidence

b)

angle of reflection

c)

normal

d)

reflected ray

19.

A concave lens has an inward curved shape. It refracts light outward from the lens. The light rays spread apart as they exit the lens. Which represents a concave lens?

a)

A

b)

B

c)

A and B

d)

neither A nor B

20.
If the angle of incidence is 45 degree, what is the angle between the incident ray and reflecting surface
a)
45
b)
90
c)
180
d)
none of the above
21.

When light passes from air to water, what happens to the speed of the light?

a)

speeds up

b)

slows down

c)

stays the same

22.
How does light behave as it enters these mediums?
a)
continue its path as straight line.
b)
bends toward the normal
c)
bends away from the normal
d)
reflects
23.
What colour is an object which does not reflect any light?
a)

Blue

b)

White

c)

Colourless

d)

Black

24.
Red objects appear 'red' because:
a)
red objects are made from red materials
b)
red objects absorb red light
c)
red objects absorb all other colour except red light
d)
red objects don't reflect any light
25.

C is the correct chemical symbol for which element?

a)

calcium

b)

copper

c)

carbon

d)

caesium

26.

The smallest part of an element is called...

a)

a compound

b)

a mixture

c)

an element

d)

an atom

27.

Which elements are present in H2SO4?

a)

hydrogen and oxygen

b)

hydrogen, oxygen and sodium

c)

hydrogen, oxygen and sulfur

d)

hydrogen, oxygen and silicon

28.

How many atoms of aluminium are there in the chemical formula for aluminium oxide: Al2O3

a)

2

b)

3

c)

5

d)

1

29.

Which element has the chemical symbol Ni?

a)

nitrogen

b)

nickel

c)

sodium

d)

neon

30.

What is the chemical symbol for copper?

a)

C

b)

Co

c)

Cp

d)

Cu

31.

What is the chemical symbol for gold?

a)

Ag

b)

Go

c)

Gu

d)

Au

32.

How many different elements are there in Mg(OH)2

a)

2

b)

3

c)

4

d)

5

33.
Carbon Dioxide is a ______ 
a)
compound 
b)
element 
c)
mixtures 
d)
Battle of Bunker Hill 
34.
Which of the following represents an element?
a)
H2O
b)
H2
c)
NaCl
d)
CaCO3
35.
Which of the following is not a compound?
a)
HCl
b)

Cl2

c)
NaCl
d)
CO2
36.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture of elements
d)
mixture of compounds
37.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
38.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
39.
Which one can be found on the periodic table?
a)
Compound 
b)
Element
40.
How many elements are represented in the compound?
Na2CO3
a)
1
b)
2
c)
3
d)
4
41.

Which of the following is a compound?

a)

H2O

b)

O2

c)

N2

d)

He

42.

Which of the following is not an element?

a)

H

b)

O

c)

NaCl

d)

He

43.

How many elements are in this chemical formula: NaHCO3

a)

1

b)

2

c)

3

d)

4

44.

FeS

a)

element

b)

compound

c)

mixture

45.

What type of joint is this?

a)

Fixed

b)

Hinge

c)

Ball and Socket

d)

Pivot

46.

What movement can a ball and socket joint do?

a)

Sliding only

b)

Popping

c)

In one direction

d)

Any direction

47.

The name of the smooth substance found at the tips of bones in joints is called ​ ​___________

a)

cartilage

b)

ligament

c)

lubricant

d)

filament

48.

Which type of joint is this?

a)

ball and socket joint

b)

hinge joint

c)

fixed joint

d)


pivot joint

49.

How many bones are in a human body?

a)

206

b)

100

c)

347

d)

106

50.

What mineral is important to have as part of a balanced diet, to give you strong bones?

a)

Iron

b)

Steel

c)

Titanium

d)

Calcium

51.

The skeleton is important for support, __________, movement and blood production.

a)

protection

b)

strength

c)

dancing

d)

shape

52.

Antagonist muscles are:

a)

Muscles in pairs

b)

Muscles which can push and pull

c)

Muscles only found within the arms

53.

Muscles work in pairs. When one contracts, the other.....

a)

Gets bigger

b)

Relaxes

c)

Moves to the left

d)

Contracts as well

54.

Tendons connect...

a)

bones to joints.

b)

muscles to bones.

c)

bones to bones.

d)

muscles to muscles.

55.

What connects bone to bone?

a)

Tendon

b)

Ligament

c)

Filament

d)

Cartilage

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