WorksheetsUnit 3.3 Sound, Light, and Electricity
Total questions: 25
Worksheet time: 28mins
Name
Class
Date
1.
What would happen if you tighten the strings on a guitar?
a)
it would make a low pitch sound
b)
it would make a high pitch sound
c)
it produces a slow vibrations
d)
it produces low frequency
2.
Why does cupping your hands around your mouth when you shout make the sound travel further?
a)
The sound spreads out.
b)
Your voice gets louder.
c)
You are screaming.
d)
The sound energy is directed in one direction.
3.
What is frequency?
a)
the number of vibrations per second
b)
how high or low a sound is
c)
the loudness or softness of a sound
d)
the back and forth movement of matter
4.
In which medium will sound travel slowest?
a)
air
b)
water
c)
glass
d)
salt water
5.
Sound is caused by....
a)
molecules
b)
vibrations
c)
people
d)
space
6.
An object that does not vibrate cannot produce
a)
sound
b)
light
c)
heat
d)
electricity
7.
The ___________________ is how loud or soft a sound is.
a)
echo
b)
frequency
c)
pitch
d)
volume
8.
Light travels
a)
around corners
b)
in a straight line
9.
Light bounces when it is
a)
reflected
b)
absorbed
c)
refracted
10.
Light bends when it is
a)
refracted
b)
reflected
c)
absorbed
11.
mirror
a)
absorbs
b)
reflects
c)
refracts
12.
A straw sitting in a glass of water looks broken because light travels more slowly through the water than air. This is an example of ____________.
a)
Reflection
b)
Refraction
c)
Absorbing
d)
Transmitting
13.
Which of the following images represents a closed circuit?
a)
b)
c)
d)
14.
When measuring how much electrons are slowed down in a circuit by payloads, we use the unit ________
a)
amps
b)
volts
c)
ohms
15.
Copper, silver, and the human body are examples of
a)
conductors
b)
insulators
c)
resistors
16.
Insulators provide resistance to the flow of electrical charges in a circuit.
a)
True
b)
False
17.
The measurement of the force that is needed to move electrons across a conductive material refers to
a)
current
b)
resistance
c)
voltage
18.
In what direction do the electrons flow in a circuit with a battery as the energy source?
a)
clockwise
b)
counterclockwise
c)
from positive end of the battery around the circuit to the negative end
d)
from negative end of the battery around the circuit to the positive end
19.
What type of circuit is this?
a)
series
b)
parallel
20.
In most electrical circuits, the pathway is made of:
a)
Wood
b)
Plastic
c)
Metal
d)
Static
21.
The picture shows an electrical circuit. This circuit is a series circuit because:
a)
It has 3 light bulbs.
b)
The same amount of current flows through all three light bulbs.
c)
It uses a single battery.
d)
Each bulb gets less energy than the one before it.
22.
In a parallel circuit if one of the light bulbs burns out the rest _________.
a)
will become brighter
b)
will still light up
c)
will not light up
d)
will burn out due to too much energy
23.
A person enters a room, flips the light switch, and a lamp turns on. What causes the lamp to turn on?
a)
The circuit is open, and flipping the switch closes the circuit.
b)
The circuit is closed, and flipping the switch opens the circuit.
c)
The wires are connected, and flipping the switch disconnects the wires.
d)
The wires are connected, and flipping the switch disconnects the lamp.
24.
In which circuit will the light(s) be on?
a)
b)
c)
d)
25.
Current moving through a circuit is stopped with a
a)
wire
b)
battery
c)
switch
d)
bulb
100 %
