301985
Question 1
Question
What is the kinetic energy formula?
Answer
-
KE=1/2∙m∙v²
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KE=m∙g∙h
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KE=m∙g
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KE=m∙v²
Question 2
Question
What is the potential energy formula?
Answer
-
PE=1/2∙m∙v²
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PE=m∙g∙h
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PE=m∙g
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PE=m∙v²
Question 3
Question
On earth, the acceleration of a free-falling object would be ___. However, in this quiz not all the questions have this as the acceleration.
Answer
-
9.8
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1
-
5
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9.8²
Question 4
Question
You serve a volleyball with a mass of 2.1 kg. The ball leaves your hand at a speed of 30 m/s. What is the amount of energy the object has?
Answer
-
KE=945 joules
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KE=1890 joules
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KE=2958 joules
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KE=623 joules
Question 5
Question
A baby carriage is sitting at the top of a hill that is 21 m high. The carriage with the baby weighs 12 kg and accelerates at 6 m/s. What is the amount of energy the object has?
Answer
-
PE=498 joules
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PE=564 joules
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PE=42 joules
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PE=1512 joules
Question 6
Question
A car is traveling with a velocity of 40 m/s. If the kinetic energy is 73,600 joules, what is the mass of the object?
Answer
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13,121 kg
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36 kg
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102 kg
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92 kg
Question 7
Question
A 99 kg cinder block is sitting on a platform 20 m high with an acceleration of 15 m/s. What is the amount of energy the object has?
Answer
-
KE=36,000 joules
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KE=297,000 joules
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KE=154,000 joules
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KE=3,000,000 joules
Question 8
Question
Acceleration= 6, Mass= 145, and Height= 21 m. What is the amount of energy the object has?
Answer
-
12,870 joules
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71,800 joules
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18,270 joules
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80,271 joules
Question 9
Question
Gravitational Potential Energy-__________________________.
Answer
-
Energy of motion
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Energy depending on vertical position (mass & height)
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Energy stored in stretchy materials
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Energy stored that measures amount of moving particles in a object
Question 10
Question
Elastic Potential Energy- _____________________.
Answer
-
Energy of motion
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Energy depending on vertical position (mass & height)
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Energy stored in stretchy materials
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Energy stored that measures amount of moving particles in a object
Question 11
Question
Kinetic Energy- _________________.
Answer
-
Energy of motion
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Energy depending on vertical position (mass & height)
-
Energy stored in stretchy materials
-
Energy stored that measures amount of moving particles in a object
Question 12
Question
Select each of the situations that involves kinetic energy.
Answer
-
Ball being dropped
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Sledding
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Airplane going to land
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Swinging
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Bow and arrow
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Triggering a gun
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Diver diving
Question 13
Question
Select the following situations that use gravitational energy.
Answer
-
Ball being dropped
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Sledding
-
Airplane going to land
-
Diver diving
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Swinging
-
Bow and arrow
-
Triggering a gun
Question 14
Question
Select the following situations that use elastic potential energy.
Answer
-
Ball being dropped
-
Sledding
-
Airplane going to land
-
Diver diving
-
Swinging
-
Bow and arrow
-
Triggering a gun
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