Investigate examples of kinetic and potential energy and their transformations.
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Q 1/9
Score 0
Which of the following is the best example of kinetic energy being transformed into potential energy?
120
A ball rolling up a hill
Coasting down a hill on a bicycle
Starting an automobile engine
Bending a paper clip
Q 2/9
Score 0
Which of the following does not contribute to the potential energy of an object?
120
Gravitational constant, or g, of the Earth
Height of the object above the Earth's surface
Mass of the object
Velocity of the object
9 questions
Q.
Which of the following is the best example of kinetic energy being transformed into potential energy?
1
120 sec
112.39.c.6.b
Q.
Which of the following does not contribute to the potential energy of an object?
2
120 sec
112.39.c.6.b
Q.
Which of the following situations is an example of kinetic energy being transformed into potential energy?
3
120 sec
112.39.c.6.b
Q.
Two positively charged particles are brought to a rest near each other in empty space. The two charges will repel from each other when released from rest.
What form of potential energy must the charges have had before being released?
4
120 sec
112.39.c.6.b
Q.
Engineers are considering using magnesium as a potential replacement for the lithium inside of rechargeable batteries. Magnesium would be a safer, more energy-dense option than lithium. What type of energy are these engineers investigating?
5
120 sec
112.39.c.6.b
Q.
If a powerlifter raises a 1,000 N weight a distance of 2.0 meters in 0.5 seconds, what is his power output?
6
120 sec
112.39.c.6.b
Q.
Three runners, each 70 kg, leave the starting line at the bottom of a hill and race to the top of the hill. All runners take different paths as shown below. Which runner had the greatest power during the race according to the data above?
7
120 sec
112.39.c.6.b
Q.
The US Patent and Trademark Office is responsible for protecting the intellectual property of inventors. A patent is granted if the idea is original and scientifically valid. A student creates a device that they claim will change the world by changing the way we understand energy. The student includes a table of energy measurements as part of his application. Which of the following would be an appropriate course of action for the US Patent and Trademark Office given the data above?
8
120 sec
112.39.c.6.b
Q.
A tennis ball launcher works by using a spring to propel the ball forward as shown below: One model of tennis ball launcher has advertised that it is capable of imparting 15,000 J of kinetic energy to a 0.5 kg ball initially at rest. A student carefully measures the compression of the spring to be 0.10 m. Refer to the information and image above.
What is the elastic energy stored in the spring?
