Why might a sealed soda can explode if left in a hot car all day?

As temperature increases, pressure increases

What is one advantage of using DC for electricity?

DC is easily provided by batteries

Which statement is true?

Friction provides the centripetal force for a car turning

When does most of Interstellar take place?

The near future, probably around 2100

Why do you sweat when it's hot?

Evaporating water draws heat from the surroundings, cooling you down

What is a light year?

The distance light travels in a year

Which historical figure has modern technology named after him?

Harald Bluetooth, who introduced Christianity to Denmark

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Final review CP

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Questions 20

Answers

1
What can you predict about the sound from an alphorn?
Very fast (high wave speed)
Very deep (low frequency)
Very slow (low wave speed)
Very high (high frequency)
2
Why might a sealed soda can explode if left in a hot car all day?
As temperature increases, pressure increases
Pressure gradually increases over time
The soda undergoes transubstantiation
The lack of air circulation impedes convection
3
What color would Pikachu be under blue light?
Black
Blue
Yellow
Teal or green
4
As our sun dies, it will become each of the following except...
A black hole
A red giant
A white dwarf
A black dwarf
5
If someone is nearsighted, their glasses should be...
Convex lenses
Aberrant lenses
Cavex lenses
Concave lenses
6
What is the resistance of a 15 ohm and a 2 ohm resistor in parallel?
Less than 2 ohms
It depends on the polarity of the neutron flow
More than 15 ohms
Between 2 and 15 ohms
7
The speed of sound is closest to which value?
343 m/s
3.14 m/s
6.022 m/s
300,000,000 m/s
8
Penguins live in Antarctica, near what magnetic pole?
South
West
North
Inner
9
What is one advantage of using DC for electricity?
DC is easily provided by batteries
DC doesn't melt wires as easily
DC travels longer distances
DC voltage can be easily changed
10
Which statement is true?
You can isolate magnetic poles but never electric charges
Friction provides the centripetal force for a car turning
The Sun makes up about half of the mass of the solar system
Changing phase from solid to liquid releases massive amounts of energy
11
Through what method does a hot stovetop cook a fried egg?
Convection
Conduction
Refraction
Radiation
12
What field of physics studies acceleration and speeds close to the speed of light?
General relativity
Special relativity
Newtonian kinematics
Quantum mechanics
13
What force causes the moon to orbit the Earth?
Gravity
Inertia
Momentum
Acceleration
14
About how much does it cost to leave a lightbulb on all day while you are at school?
Less than 1/100 of a cent
A few cents
Around $5
Around $30
15
When does most of Interstellar take place?
The near future, probably around 2100
The Great Depression, probably around 1930
The present day at time of filming, probably around 2014
The far future, probably around 3000
16
How many times more intense is 100 decibels than 50 decibels?
2 x
Impossible to determine
10,000 x
10 x
17
Why do you sweat when it's hot?
The increased temperature causes water to come out of solution
It produces pheremones that attract charismatic macrofauna
Nobody else sweats, it's just you, and we all think that's weird
Evaporating water draws heat from the surroundings, cooling you down
18
What is a light year?
The speed of light in a vacuum
The distance light travels in a year
The mass of one photon of light
The time it takes light to travel a certain distance
19
When is the Earth moving the slowest in its orbit, as proven by Kepler's laws?
June
Earth orbits the sun at a constant speed
December
Halloween
20
Which historical figure has modern technology named after him?
Al-Nasawi Wifi, who invented the sword, halberd, and horseman's eviscerator
Harald Bluetooth, who introduced Christianity to Denmark
Kolopthed Minecraft, who ordered construction of tunnels under Persia
Euripides Livestream, who built the Parthenon

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