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5.6 CBA Review

Total questions: 36

Worksheet time: 49mins

Name
Class
Date
1.
A student placed a pencil in a cup of water.  The pencil appears broken because light-
a)
always travels in a straight line
b)
bends when it passes through water
c)
makes the water in the glass evaporate
d)
reflects the pencil on the water's surface
2.

An image can be seen in a shiny surface when the light is...

a)

reflected

b)

refracted

c)

bent

d)

bounced off

3.

Smooth surface that reflects an image of what is in front of it.

a)

prism

b)

mirror

c)

lens

d)

metal spoon

4.
Which experiment listed below will best determine how height affects the distance of a rolling object?
a)
Roll 3 objects of various sizes across the floor.
b)
Roll 3 objects of different sizes from a set height on a ramp.
c)
Roll 1 object down a ramp from 3 different heights.
d)
Roll 3 objects of equal size from equal heights down a ramp.
5.
The bending of light rays, bending light means that it changes direction and/or speed.
a)
lens
b)
refraction
c)
magnify
d)
reflection
6.

Which is NOT an example of the use of sound energy?

a)

beating a drum

b)

talking

c)

playing music on the radio

d)

cooking hot dogs

7.
The pictures shows what a student observed when he looked through a hand lens at a penny.
What happens to light passing through a hand lens that makes the image of the penny appear larger? The light is-
a)
absorbed
b)
reflected
c)
refracted
d)
stopped
8.
When all parts of the circuit are connected it is a ______ circuit. 
a)
open
b)
closed
9.
A circuit must be closed for electrons to travel.
a)
true
b)
false
10.
The force that pulls you to the ground
a)
Magnetism
b)
Acceleration
c)
Friction
d)
Gravity
11.
What is a switch's function in a circuit?
a)
to make the current hotter or colder
b)
turn on and off the flow of current
c)
the pathway that current flows
d)
to add more power to the circuit
12.
Why won’t the light bulb in the circuit pictured to the right light up?
a)
The wires from the second light bulb are not connected to the battery
b)
The wires are not connected between the light bulbs 
c)
The wires are not connected to both sides of the first light bulb
d)
The wires are too long to complete the circuit 
13.
Will the light bulbs light or not light based on this circuit design?
a)
The light bulbs will light.
b)
The light bulbs will NOT light.
14.

What item would best complete this circuit?

a)

A wire

b)

A switch

c)

A battery

d)

A light bulb

15.
When you flip a light switch on and off you are closing and opening a circuit.
a)
true
b)
false
16.
What is this a picture of?
a)
open circuit
b)
complete circuit
17.
What is this image an example of?
a)
Reflection
b)
Refraction
18.
How does light travel from a source?
a)
Around corners
b)
In circles
c)
Very slowly
d)
In a straight line
19.
A hand lens makes objects under it appear bigger because the lens...
a)
bends the light passing through it.
b)
increases the strength of the light.
c)
decreases the light passing through it.
d)
changes the color of the light passing through it.
20.
What is a PUSH or PULL of an object?
a)
Motion
b)
Force
c)
Friction
d)
Gravity
21.
Why is it harder for the boy in Image B to get down the hill?
a)
Motion
b)
Friction
c)
Work
d)
Magnetism
22.
Why is a bulb brighter when it is powered by two batteries rather than one?
a)
Because the flow of electricity in the circuit is less
b)
Because the flow of electricity in the circuit is the same
c)
Because the flow of electricity in the circuit is greater
23.
The type of energy that allows us to hear is - 
a)
Mechanical
b)
Sound
c)
Light
d)
Electric
24.

Electrical energy -

a)

a form of energy which our eyes can detect

b)

the transfer of thermal energy from one object to another

c)

energy that is caused by the flow of electrons through a conductor

d)

energy related to the temperature of an object or a substance

25.
Which light will be brighter and why?
a)
Bulb A because its circuit is closed
b)
Bulb B because its circuit is closed
c)
Bulb B because it has more energy
d)
Bulb A because it has less energy
26.

Which of the following best uses mechanical energy to perform a useful task?

a)

hammering a nail

b)

pencil sharpener

c)

candle

d)

solar calculator

27.
Daniel has chores to do around the house.  In which of his chores does he use thermal energy? 
a)
Cook eggs for breakfast
b)
oil a squeaky door hinge
c)
sweep the back porch 
d)
dig weeds in the garden 
28.
If you were building a circuit, why would you use metal and not rubber to send electricity through the circuit? 
a)
metal is a better insulator
b)
rubber is a better conductor
c)
metal is an insulator, but rubber is a conductor
d)
metal is a conductor, but rubber is an insulator
29.

Which of these could be placed in the gap to complete the circuit?

a)

rubber band

b)

iron nail

c)

wooden toothpick

d)

paperclip

30.

Students are tying to determine if the mass of and object can effect the distance it will travel. What materials would they need to conduct this experiment?

a)

stopwatch

b)

balance

c)

meter stick

d)

hot plate

31.
The reflector on a car is a use of
a)
mechanical energy
b)
light energy
c)
thermal energy
32.
Which form of energy is being used by the toaster?
a)
Light
b)
Electrical
c)
Thermal
d)
Sound
33.
Which of these substances conducts electricity the best?
a)
Wood
b)
Brick
c)
Copper 
d)
Plastic
34.
The illustration shows a lamp plugged into an outlet.
When the lamp is turned on and the bulb is lit, the circuit demonstrates which of the following?
a)
Sound energy changing to light energy
b)
Electrical energy changing to light energy
c)
Electrical energy producing mechanical energy
d)
Light energy producing sound and heat energy
35.
This picture is an example of - 
a)
refraction
b)
reflection
c)
absorbing
d)
reduction
36.

Underwater geysers have temperatures that are over 100 degrees Celsius when they erupt. What type of energy causes this?

a)

light

b)

sound

c)

electrical

d)

thermal

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