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4th grade Energy Flashcards | StudBud
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4th grade Energy
4th grade Energy
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1
Imagine that the truck collide with a stationary car at the bottom of the hill, what is most likely to happen?
When the truck and car collide, they move in opposite directions
When they collide, the car doesn't move and the truck comes to a stop
When they collide, the truck rolls over the car and keeps moving
The car is pushed and begins moving and the truck slowly comes to a stop
2
What energy transformation does an blender primarily perform
electrical to mechanical and sound
electrical to sound and light
electrical to sound
electrical to heat
3
This image shows what type of renewable energy that it produces
solar energy
wind energy
geothermal energy
water energy
4
You set up a circuit that uses one battery and two light bulbs.One bulb burns out & causes the other to turn off. Why?
The circuit is too weak
The electrical energy can't flow through the broken bulb
The bulb caused the battery to die
5
A bike, truck & a train (no passengers, motors, or engines) roll down the same hill. What vehicle uses the least energy?
Bike
train
Truck
6
If a streetlight absorbs sunlight during the day and glows at night, what energy transformation that makes it happen?
chemical to mechanical
mechanical to mechanical
solar to light
mechanical to sound
7
The sun helps an apple tree grow. Justin picks an apple & eats it, then plays soccer. What is the energy transfer?
Solar to chemical to sound energy
Chemical to mechanical to sound energy
Solar to chemical to mechanical energy
Solar to mechanical to sound energy
8
If a guitar string vibrates what is the energy transformation that makes it happen?
chemical to mechanical
mechanical to sound
mechanical to mechanical
solar to light
9
An engineer wants to build a car that doesn't use fossil fuels or chemical energy to move. What could he use instead?
gasoline
small batteries
solar panels
lightbulbs
10
You are racing a toy boat across the pond. Which type of wave would cause the boat to move the fastest?
Waves with a high frequency
waves with a small amplitude
Waves with short frequency
waves with a long wavelength
11
Tumbling dominoes display energy transfer when the motion energy moves from domino to domino causing each to fall.
False
True
12
Why is it important to seek alternative energy sources to replace fossil fuels
They are cheaper
They are more efficient
They are more popular
They are renewable and fossil fuels aren't
13
This image shows what type of renewable energy that it produces
water energy
solar energy
geothermal energy
wind energy
14
What energy transformation does an Stereo primarily perform
electrical to mechanical and sound
electrical to heat
electrical to sound and light
electrical to sound
15
What energy transfer occurred between the car and truck (from the last question?)
chemical energy is transferred to the car and it explodes
mechanical energy is transferred to the car but the car doesn't move
mechanical energy is transferred to the car and the car moves
solar energy is transferred to the car and the car lights up
16
One way you can use a pattern of clapping sounds to transfer information is having patterns represent letters or words.
False
True
17
If a tennis player uses food energy to play a match (game) what is the energy transformation that makes it happen?
solar to light
mechanical to sound
mechanical to mechanical
chemical to mechanical
18
What energy transformation does an TV primarily perform
electrical to sound and light
electrical to sound
electrical to heat
electrical to mechanical and sound
19
A bike, truck & a train (no passengers, motors, or engines) roll down the same hill. What vehicle uses the most energy?
Bike
Train
Truck
20
Sound travels in waves. If a sound is played on repeat, which of the following statements is true?
the sound waves will increase in frequency over time
The sound waves will lose energy over time.
The sound waves will be heavier over time
The sound waves will follow the same pattern over time
21
What energy transformation does an oven primarily perform
electrical to sound
electrical to heat
electrical to sound and light
electrical to mechanical and sound
22
If a wind up toy moves what is the energy transformation that makes it happen?
chemical to mechanical
solar to light
mechanical to sound
mechanical to mechanical
23
Tumbling dominoes display energy transformation when sound is emitted as the dominoes collide with one another
False
True
24
When an object is held in the air, it has stored energy. When the object is released and begins falling, it experiences
motion energy
transferred energy
electrical energy
collision energy
25
This image shows what type of renewable energy that it produces
wind energy
solar energy
geothermal energy
water energy
26
This image shows what type of renewable energy that it produces
water energy
solar energy
geothermal energy
wind energy
