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Q1 Review (2017-18)

Total questions: 20

Worksheet time: 43mins

Name
Class
Date
1.
Water has a specific heat of 4.184 J/gºC.  Wood has a specific heat of 1.760 J/gºC.  What material needs more energy to raise the temperature 1ºC
a)
Wood
b)
Water
c)
Both are the same
d)
Not enough information provided
2.
A high specific heat means...
a)
It heats up quickly with energy added
b)
It requires more energy to change temperature
c)
It gets hotter than an object with a low specific heat
d)
It won't get as hot as an object with a low specific heat
3.
The specific heat of aluminum is 0.9 J/g°C.  How much heat is transferred when a 10 g piece of aluminum foil is taken out of the oven and cools from 100° to 50°?
a)
-450 J
b)
450 J
c)
4,500 J
d)
-4,500 J
4.
If a student applies the same amount of heat to two samples of water - one containing 100 mL and one containing 1000mL - which one heats up the fastest? 
a)
The 100 mL sample
b)
The 1000 mL sample
c)
They both heat up at the same speed
d)
Not enough information provided.
5.
What would be the effect on the particles if more heat is supplied to the system?
a)
They would slow down
b)
They would stop moving
c)
They would speed up
d)
There would be no effect
6.
Wood, batteries, gasoline, and  food are all examples of ________________________.
a)
gravitational potential energy
b)
elastic potential energy
c)
chemical potential energy
d)
None of the above
7.
Where in the skatepark are potential and kinetic energy of the skater roughly equal?
a)
Point A
b)
Point B
c)
Point C
d)
None of the above
8.
Burning coal would be which of the following energy transfers:
a)
Kinetic to thermal
b)
Potential to thermal
c)
Chemical to thermal
d)
Thermal to chemical
9.
Which flow chart shows a correct energy transfer?
a)
A
b)
B
c)
C
10.
Kinetic energy can be calculated using the formula   KE = 1/2mv2.  What is the kinetic energy of a bicycle that has a mass of 20 kg and is traveling at a velocity of 10 m/sec?  
a)
200 J
b)
100 J
c)
1,000 J
d)
2,000 J
11.
When the frequency of a wave increases, what happens to the wavelength?
a)
The wavelength is not directly affected by the frequency of a wave.
b)
The wavelength increases.
c)
The wavelength decreases.
d)
More specific information is needed to form a conclusion about the wavelength.
12.

Which factor(s) affect how quickly sound travels?

a)

The amplitude of the sound wave.

b)

The temperature.

c)

The amplitude of the sound wave and the medium the wave travels through.

d)

The temperature and the medium the wave travels through.

13.
When a wave's amplitude increases it means
a)
it's carrying more energy
b)
its wavelength gets longer
c)
its frequency increases
d)
its pitch increases
14.
If you want to change the pitch of a sound, you have to change the ___
a)
frequency
b)
amplitude
c)
speed
d)
volume
15.
How are sound and light waves similar?
a)
both transmit energy
b)
both require a medium
c)
neither require a medium
d)
both transmit matter
16.
Which radioactive isotope decays quicker?
a)
Carbon-14
b)
Plutonium-239
c)
Same
17.
What happens to an isotope when its mass becomes too large and unstable? 
a)
It begins to emit radioactive energy, which can cause a fission reaction
b)
It begins to add protons in order to balance out the nucleus' mass
c)
It beings to emit only an electron because electrons are the largest subatomic particle 
d)
It begins to release compounds such as CO2
18.
The technetium-99 isotope has a half-life of 6.0 hours. If 100.0 mg were injected into a patient how much remains after 18 hours?
a)
33.0 mg
b)
12.5 mg
c)
.33 mg
d)
15.8 mg
19.

What is the name of product isotope produced when protactinium-215 undergoes alpha decay?

a)

Actinium-211

b)

Actinium-215

c)

Thorium-211

d)

Thorium-215

e)

Uranium-211

20.

A group of students in a science class were provided with the following materials: 10 m of copper wire, 2 D cell batteries, an iron nail, an aluminum nail, a switch, a compass, and a box of paper clips. Which of the following questions could they test with these materials? (Select all that apply!)

a)

How does the number of coils affect the strength of an electromagnet?

b)

Is there a difference in the direction of the electric current when the wires connected to the + and - terminals are switched?

c)

How does voltage affect the strength of an electromagnet?

d)

Does the type of core in an electromagnet affect the strength of an electromagnet?

e)

Does the type of circuit (series or parallel) affect the strength of an electromagnet?

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