WorksheetsMwenda Londa
Total questions: 20
Worksheet time: 26mins
Name
Class
Date
1.
This is the symbol for a _____?
a)
Fixed resistor
b)
Variable resistor
c)
Fuse
d)
Box
2.
In parallel circuit, there are _________ pathways for charge to flow.
a)
One
b)
Two or more
c)
None
d)
Zero
3.
What are the parts of a longitudinal wave?
a)
Compressions and rarefactions
b)
Crests and troughs
c)
Compressions and crests
d)
Rarefactions and troughs
4.
What is the unit for frequency?
a)
cm
b)
m
c)
units2
d)
Hz
5.
A ray of light travels from air into a glass block.
Which diagram correctly shows the path of the ray through the glass block?
a)
A
b)
B
c)
C
d)
D
6.
Sound is produced by -----
a)
Heat energy
b)
Low temperatures
c)
Vibrations
d)
Friction
7.
Which wave has the largest wavelength?
a)
A
b)
B
c)
C
d)
None (same wavelength)
8.
What is the difference between reflection and refraction?
a)
Both involve light bending through a medium
b)
Reflection is light bouncing off a medium's surface and refraction is light bending through a medium
c)
Reflection is light bending through a medium's surface and refraction is light bouncing off a medium
d)
Refraction is light being absorbed in a medium and reflection is light being bent through a different medium
9.
How do you calculate voltage?
a)
Current X Resistance
b)
Resistance ÷ Current
c)
Current ÷ Resistance
d)
Measure it with a ruler
10.
What voltage is needed to cause a 2A current flow through a 10Ω resistor?
a)
5V
b)
0.2V
c)
20V
d)
200V
11.
What resistance is needed to cause a 50A current flow because of a 500V battery?
a)
10Ώ
b)
5Ώ
c)
2500Ώ
d)
550Ώ
12.
Why electrical wiring usually are covered with a layer of plastic?
a)
To make it look pretty
b)
To help electricity flow along the wire
c)
To make it safe
d)
To add more energy
13.
Which of the following removes carbon from the atmosphere?
a)
Combustion
b)
Respiration
c)
Photosynthesis
d)
Death
14.
Why does the Moon seem to change shape?
a)
As the Moon revolves around Earth, different parts are lit by the Sun.
b)
The viewpoint from Earth of the illuminated side of the Moon changes.
c)
Earth’s shadow is blocking light from the Sun.
d)
The way the Moon produces light changes, so we see different shapes.
15.
A gibbous moon appears to be lit up how much?
a)
half
b)
all of the moon
c)
3/4
d)
there is no such thing as gibbous
16.
Which phenomenon does the Moon affect on Earth?
a)
The seasons
b)
Tree growth
c)
Mountain erosion
d)
The tides
17.
What is the most popular hypothesis of the formation of the moon?
a)
The moon passed very close to the earth and was caught in its gravitational pull.
b)
The moon formed the same time as the earth.
c)
The moon formed when a small planet smashed into the newly formed earth sending debris into space which formed the moon.
18.
Which of these is a key piece of evidence of contiental drift?
a)
Continent shapes
b)
Fossil record
c)
Rock layers
d)
All of the above
19.
The ______ is the center of our solar system.
a)
Sky
b)
Earth
c)
Sun
d)
Moon
20.
A natural object that orbits a body bigger than itself.
a)
Planet
b)
Star
c)
Comet
d)
Moon
100 %
