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Why Does Energy Matter? Flashcards | StudBud
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Why Does Energy Matter?
Why Does Energy Matter?
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Answers
1
Everything we can touch is made up of particles.
True
False
2
Which of these is a CHEMICAL reaction?
A piece of paper is torn in half
Sand is mixed with water
Fire burns through wood
Jude's water bottle breaks
Batter turns into cake
A pair of scissors starts to rust
3
That means our energy will never, ever run out, right?
False
True
4
Mechanical energy . . .
Provides energy for machines to work
Moves between two things, one hotter than the other
Is stored in matter
Moves
5
There are lots of types of energy! Including:
Electrical
Chemical
Heat
Mechanical
6
I am not allowed to use my science duotang tomorrow.
True
False
7
There are two forms of energy.
False
True
8
Those particles are totally not moving. Not at all.
False
True
9
Which of these energy sources is sustainable?
Renewable
Non-renewable
10
Chemical energy . . .
Moves between two things, one of them hotter than the other
Is stored in matter
Comes from things that move
Provides energy for machines to work
11
Nice work. Okay, last one. For tomorrow's quiz, click all that apply.
If you fail, you fail all of school
You'll have a chance to resubmit
You'll have other chances to prove your knowledge and thinking
It's open book
12
We won't be fine? What do you mean?
Increased energy consumption has been linked to global climate change.
Eventually, we'll have to eliminate half the population of Earth.
Mass production of goods can lead to increased waste.
Much of our energy comes from fossil fuels, which heat our planet.
13
What's the main source of energy?
Fossil Fuels
Wood
The Sun
Electricity
14
And I mean, if we have to use energy, how can we use less?
Bike or walk instead of driving
Spend money on insulation for your house
Install energy-efficient appliances and light bulbs
15
How many "states" of matter are there?
Three: Solid, Liquid, and Gas
Three: Ice, Water, and Steam
Two: Liquid and Steam
Two: Solid and Liquid
16
Nice work. How many of those steps consume energy?
Just the machine processes (ingredients are mixed, cereal is dried out)
EVERY SINGLE STEP.
The part where grains get grown (at the start)
None. It all happens *magically.*
Just the parts humans help with (growing and inspecting the grain)
17
We have infinite energy though. We'll be fine.
False
True
