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Bellwork 3 Week 6 4th Nine Weeks

Authored by E Wheeler

Chemistry

9th - 12th Grade

Used 2+ times

Bellwork 3 Week 6 4th Nine Weeks
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11 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

How does heat flow?

Always from cold to warm
Always from warm to cold
Both warm to cold & cold to warm
It depends on the temperature

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is the equation to measure change in Thermal Energy?

Q=mc∆t
Q=mc
Q= ∆mct
m=QC

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

There are four cups of hot cocoa. The cup sizes are shown. The temperature of the cocoa in each cup is 25 degrees celsius. Which cup has the MOST thermal energy?

Large cup (Trenta)
Small cup (Tall)
Medium cup (Venti)
All three are the same temperature so they have the same thermal energy

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What unit do you use to measure Thermal Energy?

J/Kg ºC
Kg
ºC
J

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

The specific heat of aluminum is 0.21 cal/g°C.  How much heat(Q) is released when a 10 g piece of aluminum foil is taken out of the oven and cools from 100° to 50°?

105 J
10.5 J
1.05 J
50 J

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

The specific heat(c) of copper is 0.39 J/g °C. What is the temperature change(∆t) when 100 Joules of heat(Q) is added to 20 grams of copper?

12.82 °C
24.12°C
351 °C

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The amount of energy required to raise the temperature 1ºC for every kilogram is called____?

Thermal Energy
Specific Heat
Temperature
Kinetic Energy

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