Font size
WorksheetsSemester 2- Test #1 (18/19)
Total questions: 137
Worksheet time: 2hrs 11mins
Object A has a specific heat of 0.25 J/g⁰C and object B has a specific heat of 1.82 J/g⁰C. Which object will heat up faster?
Object A, it has a lower specific heat
Object B, it has a lower specific heat
Object A, it has a higher specific heat
Object B, it has a higher specific heat
A reaction requires that 96.7 g of PCl₃ be raised from 31.7°C to 69.2°C. How much energy will this require given that the specific heat of PCl₃ is 0.874 J/g °C?
6350J
12700J
1584J
3169J
The specific heat of platinum is 0.133 J/g°C. How much heat(Q) is released when a 10 g piece of platinum cools from 100°C to 50°C?
66.5 J
665 J
0.0266 J
0.665 J
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?
12.82 °C
24.12°C
1.95 °C
5128 °C
The unit(s) for heat are?
calories
joules
calories or joules
Copper, Stainless Steel, Carbon Steel, and Zinc were all heated using the same thermal energy. What material would be the coolest after being heated?
Copper
Carbon Steel
Zinc
Stainless Steel
Resulting in heat being absorbed from the surroundings.
Endothermic
Entropy
Exothermic
First Law of Thermodynamics
Resulting in heat being released into the surroundings.
Exothermic
First Law of Thermodynamics
Heat Engine
Heat Pump
Pendulum A: A 200-g mass attached to a 1.0-m length string
Pendulum B: A 400-g mass attached to a 0.5-m length string
"I can lead with pride, I can make us strong, I'd be satisfied if I played along..."
Aladdin
Moana
Brave
Mulan
Compression and rarefaction for a longitudinal wave can travel at different speeds.
true
false
Sounds of low frequencies will travel through air farther than waves with higher frequencies because
sound waves of lower frequencies turn into thermal energy faster.
sound waves of higher frequencies turn into thermal energy faster.
Longitudinal waves carry more energy than transverse waves.
true
false
Volume is measured in _______ .
decibels
amps
intensity
watts
