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WorksheetsTopic 5 - Energy
Total questions: 79
Worksheet time: 26mins
If you have two objects have a charge and they push away from each other no matter how close you put them together, what hypothesis can be true?
The first object is a positive charge and the second charge is a negative charge.
Both charge have a negative charge and pull towards each other.
The first object has a negative charge and the second object has a positive charge, so the objects push away.
Both objects have the same charge and push away from each other.
If you put ice cream on warm apple pie, it starts melting. What type of energy is being used?
Light Energy
Heat Energy
Chemical Energy
Electrical Energy
What material is used to best power a light bulb?
Copper
String
Plastic
Glass
When riding a bike that has reflective tape from the sun and a bell, what energy is NOT being used?
Electrical Energy
Mechanical Energy
Light Energy
Sound Energy
Which of these examples is NOT an example of how energy changes?
Dropping a bag
Rolling a soccer ball
Closing the door
Holding the cup in one place
Which electrical circuit will make the light bulb turn on?
How can you fix this circuit to have energy flow from the battery to a light bulb?
Add the battery
Increase the wires used to make more conductors
Close the switch to make it a closed circuit
Move the light bulb
Why is an insulator used in an electrical circuit?
An insulator helps keep the electric charges inside the pathway.
An insulator transforms electrical energy into other forms of energy
An insulator provides the energy to pump electric charges through the circuit.
An insulator provides the pathway through which an electric current moves.
When you turn on a radio, what type of energy transformation takes place?
sound energy to chemical energy
chemical energy to sound energy
electrical energy to sound energy
sound energy to electrical energy
Ed Sheeran strums two strings on a guitar. The first string vibrates more quickly than the second string. What is true about the pitch of the strings?
The first string has a higher pitch than the second string
The second string has a higher pitch than the first string
The strings all have the same pitch
The pitch of the second string is louder than the pitch of the first string.
Mr. Long just bought prescription sunglasses. How do he glass lenses make things look larger?
by reflecting the light
by absorbing the light
by transferring the light
by refracting the light
The bulbs are off. Which procedure will turn the bulbs on?
Disconnect wire 4
Close the switch.
Replace the batteries.
Remove one bulb.
Which list has everything needed to make a complete circuit that will ring a bell?
switch, bell, insulator, wire
bell, wires, battery, switch
wire, battery, bulb, wire cutter
bulb, wire, bell, buzzer
Which of the following is true about energy?
Energy never moves
Energy is never destroyed
Energy always changes to heat
Energy changes to light
Which of the following is true about the circuit below?
The circuit converts electrical energy into heat energy
The circuit converts light energy into electrical energy
The circuit is open
The circuit has a source of energy that is changed into sound energy
Ava found an old Baby Yoda toy. When she tried to turn it on, it wouldn't work. She changed the batteries, but it still would not work. What is the MOST LIKELY reason the toy still is not working?
Electric current is flowing through a closed loop
One wire in the electric current is not connected to the switch
The toy needs plugged into an outlet
The switch is connected to two wires in the electric circuit
Which of the following is the BEST example of using insulators with conductors?
Rubber on the bottom of peoples' shoes to prevent them from getting struck by lightening.
A glass computer screen used to prevent in from overheating.
A plastic handle cover for a light switch to keep people safe from getting shocked.
Wood used to build houses to keep wires in the walls and to prevent people from getting shocked.
Which statement below might explain why this child's hair is standing up after going down the slide?
Atoms in the child's hair have opposite charges
Atoms in the child's hair have like charges
Atoms in the plastic slide have like charges
Atoms in the ground have opposite charges
Gravitational potential energy and kinetic energy make up what type of energy?
Mechanical
Chemical
Electrical
Sound
What type of energy do we get from the food we eat?
light
thermal
chemical
sound
The sun provides ____________ and ____________ energy that can be harnessed and used for solar power.
chemical, sound
mechanical, light
sound, light
light, thermal
A balloon after it is charged by rubbing wool on it and now sticks to the wall. What is the best explanation for this? What attracts?
The balloon has a positive charge (+) and the wall has a positive charge (+).
The balloon has a negative charge (-) and the wall has a negative charge (-).
The balloon has a neutral charge (0) and the wall has a neutral charge (0).
The balloon has a negative charge (-) and the wall has a positive charge (+).
What happens if you hold an ice cube in your hand?
cold from the ice cube transfers to your hand
heat from your hand transfers to the ice cube
cold from your hand transfers to the ice cube
heat from the ice cube is transferred to your hand
What type of energy is being used when riding a bicycle?
mechanical
light
thermal
sound
This image is an example of
reflection because the light bounces from the water to the air.
thermal energy causing the dolphin to jump.
absorption because the light is bouncing back.
refraction because light is bent when it passes from the air to the water.
A material that does NOT let electricity pass through it is called ...
An electrical conductor
An electrical insulator
An electrical source
An electric appliance
To complete the circuit, a wire should be placed from —
When the switch is closed the buzzer will sound because -
a material that allows heat or electrical energy to easily pass through it
circuit
conductor
generator
insulator
If the balloon has a negative charge, the hair must have what charge?
negative
positive
neutral
the flow of electrons from one place to another
electricity
magnetism
gravity
forward motion
What is static electricity?
The build up positive charge in an object. Static charge can be released as a brief burst of electrical energy and felt as a shock.
The build up of neutral charge in an object. Static charge can be released as a brief burst of electrical energy and felt as a shock.
The build up of negative electrical charge in an object. Static charge can be released as a brief burst of electrical energy and felt as a shock.
READ the following statement CAREFULLY:
Is what is shown in the model an example of an open or closed circuit?
Open
Closed
Neither
READ the following statement CAREFULLY:
Explain what happens to the electrons in the electrical circuit when the teacher “turns off” the lights in your classroom.
When the teacher turns off the lights, she/he is actually CLOSING the circuit so that no electrons can flow through it.
When the lights switch is “turned on” the switch is actually CLOSING the circuit so that electrons can flow through the wires, creating electricity and turning the lights on.
When the lights switch is “turned on” the switch is actually OPENING the circuit so that electrons can flow through the wires, creating electricity and turning the lights on.
READ the following statement CAREFULLY:
Every circuit includes a battery or power source, wires, switch, and a source of electricity, such as a light bulb or radio.
True
False
What does a "closed" circuit mean?
Electrons are escaping the circuit
Electrons are flowing freely within the loop
Electrical energy can be transformed into other forms of energy.
True
False
How do the rate of vibrations effect the level of pitch?
The slower the vibration, the higher the pitch
Vibrations do not effect pitch
The faster the vibration, the higher the pitch
The faster the vibration, the lower the pitch
What is pitch?
The loudness of a sound
The highness or lowness of a sound
The amount of vibrations in an amount of time
A unit of measurement for sound
The faster the vibration, the lower the pitch
What is conduction?
Heat transferring from one object to another
The energy that exists in matter
The measurement of heat
The transfer of heat through electromagnetic waves which move through space
Transfer of heat through liquid or gas
What is temperature?
Heat transferring from one object to another
The energy that exists in matter
The measurement of heat
The transfer of heat through electromagnetic waves which move through space
Transfer of heat through liquid or gas
Energy has the ability to cause motion or create change.
True
False
What does OPAQUE mean?
A term used to describe a material that absorbs and/or reflects light and does not allow light to pass through.
A term used to describe a material that can be clearly seen through because it allows light waves to pass through in straight lines.
A term used to describe a material that cannot be clearly seen through but that allows some light to pass through it.
What does TRANSLUCENT mean?
A term used to describe a material that absorbs and/or reflects light and does not allow light to pass through.
A term used to describe a material that can be clearly seen through because it allows light waves to pass through in straight lines.
A term used to describe a material that cannot be clearly seen through but that allows some light to pass through it.
What does it mean when light energy is REFLECTED?
Light bends when it travels through a transparent object; it causes the object to appear distorted.
An object gets its color from the colors that are reflected, all other colors are taken in.
It occurs when light hits an object and bounces off of it; it allows us to see ourselves when we look in a mirror.
Light travels in a straight line even if it strikes an object or travels from one substance to another.
True
False
Which statement best explains what is happening in this image?
Light changes the way things look because it can vibrate matter.
Light changes the way things look because it bends around and bounces off matter.
Light changes the way things look because it is opaque.
Light changes the way things look because it is transparent.
What is Sound energy?
Energy in an object due to its motion or position
Energy produced by vibrations
Energy made when substances react and form new substances
Energy caused by moving particles
Energy produced from the flow of an electrical current
What is mechanical energy?
Energy in an object due to its motion or position
Energy produced by vibrations
Energy made when substances react and form new substances
Energy that travels in electromagnetic waves
Energy caused by moving particles
What is heat energy?
Energy that travels in electromagnetic waves
Energy in an object due to its motion or position
Energy made when substances react and form new substances
Energy caused by moving particles
Energy produced by vibrations
What type of energy causes the motion of the cart?
Sound
Mechanical
Heat
Electrical
Which statement is true about the light bulb?
The light bulb is on because it is part of a closed circuit.
The light bulb is on because it is part of an open circuit.
The light bulb is off because it needs another wire to complete a closed path for electrons.
The light bulb is on because it needs another wire to complete a closed path for electrons
Which bulbs are on even if the switch is open.
Only the red bulb is on.
Only the blue, green and purple bulbs are on.
All of the bulbs are on.
Only the blue bulb is on.
Which bulbs are off because the switch is open?
Only LED 1
All of them are off.
LED 2 and 3
LED 2, 3, and 4
Which switch needs to be closed so that only the yellow bulb lights up?
Switch 1
Switch 2
Switch 3
All of the switches.
Which statement is true about this circuit?
It is an open circuit because there needs to be a wire connected to both + and - parts of the battery.
It is a closed circuit because the wire is in a circle.
It is an open circuit so the light bulb is ON.
It is a closed circuit because there is a source, path and bulb.
What happens to the other two bulbs if the middle bulb is not working?
They stay on because there a other pathways for electrons to flow.
They also turn off because there is only one path for electrons to flow.
The battery blows up because the bulb is not working.
The wires heat up and start to glow.
Which circuit is closed so the light bulb is on?
Glass is an example of an insulator.
True
False
What is the purpose of conductors in an electric circuit?
make the circuit faster
connect parts of circuit
stop the flow of electricity
Why do electrons move so easily in conductors?
have loose electrons
have tight electrons
have exploding electrons
When more light bulbs are added they all remain bright.
Energy of motion
speed
kinetic energy
motion
law of conservation of energy
Energy can neither be created nor destroyed, energy just changes form
law of conservation of energy
kinetic energy
mass
speed
A measure of how much matter
is present in a substance
joule
motion
mass
law of conservation of energy
If an object's atoms and molecules are moving very quickly what might be true about its thermal energy?
The object is hot.
The object is cold.
The object is a solid.
The object has no thermal energy.
