WorksheetsEnergy
Total questions: 20
Worksheet time: 40mins
When an object is hit with a mallet, the vibration it creates makes
a sound wave
a reflection
a current
a convex surface
When light meets a convex surface, the image
changes size
remains the same
is darker
is brighter
Which circuit in the picture is considered a "CLOSED" circuit?
left
right
Which of the following would not affect a ball being hit in a baseball game?
mechanical energy
friction
gravity
magnetism
A device that makes electricity by using chemical reactions and storing energy until it is needed is called a(n)
circuit
battery
insulator
copper wire
Material that allows electric current or thermal energy to pass through easily is a(n)
conductor
insulator
flow
circuit
When plugged in, these lights will either be all on or all off. Why?
The bulbs all wear out at once.
The electric current flows separately to each color of bulb.
The electric current flows from one light bulb to the next.
The electric current cannot flow very easily through the bulbs.
Sound can travel through solids.
True
False
Sound can’t travel through liquids.
True
False
Kate's teacher gives her a tuning fork like the one shown. Kate knows that the following four things must happen so that she can hear the tuning fork. However, she does not know what order they must happen in. W-Her eardrum vibrates. X-She hits the tuning fork. Y-The air around tuning fork vibrates. Z-The tuning fork vibrates. Which of these shows the steps above in the order that they must occur for someone to be able to hear the tuning fork?
W X Y Z
Y Z X W
W Z Y X
X Z Y W
Which of the following is an example of light being refracted?
Seeing yourself in a mirror
A penny shining
Using a hand lens (magnifying glass)
Looking at your shadow
In order to get a flashlight to work, you must
get the filament to heat up
create an open circuit
create a vibration
have a switch
Which of the following are ALL examples of using mechanical energy?
swinging, a windmill turning, and toasting bread
cooking dinner, using a ceiling fan, and riding a bike
riding a skateboard, opening a door, and using a catapult
pushing a toy car, watching TV, and playing a flute
Which of the following is NOT an example of changing pitches?
tightening violin strings
yelling at a friend
playing a xylophone's short and long bars
singing a high note and then low note
Engineers design products to keep people safe. Which of the following is NOT a technology that uses LIGHT energy?
lighthouse
eye glasses
traffic lights
car alarms
