Test "The efficiency of the heat engine"

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questions - 10
answer - 1 of 3 options

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Froggy Jumps Test "The efficiency of the heat engine"Version en ligne questions - 10 answer - 1 of 3 options par Nazerke 1 What is it? a radiator b heat engine c pump 2 What is a heat engine? a devices that convert thermal energy into mechanical energy b devices that convert thermal energy into electrical energy c devices that convert mechanical energy into thermal energy 3 What does "The Tesla model S electric motor has an efficiency of 95%" mean? a 5% of heat does work b 95% of heat releases from exhaust c 95% of heat does work 4 "The Tesla model S electric motor has an efficiency of 95%" What percent ΔU=? a ΔU=5% b ΔU=100% c ΔU=95% 5 The blue car's electric motor has an efficiency of 22% What percent ΔU=? a 56% b 22% c 78% 6 Which car is bad for the environment? a The Tesla b The blue car c none of them 7 if η=40% , Q=10kJ, find the A=? a 4kJ b 6kJ c 10kJ 8 if η=30% , A=300J, find the Q=? a 300 b 600 c 1000 9 if A=250J and Q=1250J find the η=? a 0.2 b 0.5 c 0.6 10 if Q=1000J and ΔU=700J find the η=? a 30% b 40% c 50%

Froggy Jumps

Test "The efficiency of the heat engine"Version en ligne

questions - 10 answer - 1 of 3 options

par Nazerke

What is it?

radiator

heat engine

pump

What is a heat engine?

devices that convert thermal energy into mechanical energy

devices that convert thermal energy into electrical energy

devices that convert mechanical energy into thermal energy

What does "The Tesla model S electric motor has an efficiency of 95%" mean?

5% of heat does work

95% of heat releases from exhaust

95% of heat does work

"The Tesla model S electric motor has an efficiency of 95%" What percent ΔU=?

ΔU=5%

ΔU=100%

ΔU=95%

The blue car's electric motor has an efficiency of 22% What percent ΔU=?

56%

22%

78%

Which car is bad for the environment?

The Tesla

The blue car

none of them

if η=40% , Q=10kJ, find the A=?

4kJ

6kJ

10kJ

if η=30% , A=300J, find the Q=?

300

600

1000

if A=250J and Q=1250J find the η=?

0.2

0.5

0.6

if Q=1000J and ΔU=700J find the η=?

30%

40%

50%

Test "The efficiency of the heat engine"

Froggy Jumps

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Test "The efficiency of the heat engine"Version en ligne

par Nazerke

What is it?

What is a heat engine?

What does "The Tesla model S electric motor has an efficiency of 95%" mean?

"The Tesla model S electric motor has an efficiency of 95%" What percent ΔU=?

The blue car's electric motor has an efficiency of 22% What percent ΔU=?

Which car is bad for the environment?

if η=40% , Q=10kJ, find the A=?

if η=30% , A=300J, find the Q=?

if A=250J and Q=1250J find the η=?

if Q=1000J and ΔU=700J find the η=?