Work and power
Energy forms
Energy conversion
Energy conservation
Energy transformation
100
What is the work done by pushing a box using a force of 10 N for a distance of 10 m?
What is 100 J?
100
A person on top of a 1000-m mountain has a potential energy of 300,000 J. What is his potential energy be if he hiked back down half way to the summit?
What is 150,000 J?
100
A pendulum is dropped at a height of 0.2 m. Disregarding friction, it will rise on the other end to the height of ________.
What is 0.2 m?
100
non renewable sources of energy that are extracted from deep within the earth are called ______.
What is fossil fuels?
100
What is the energy transformation in a photovoltaic cell?
What is solar to electric?
200
What is the power spent lifting a 10 N box for 10 meters within 10 seconds?
What is 10 Watts?
200
An Olympic runner has a kinetic energy 5,000 J running a track. What is his kinetic energy if he picked up a disk his own size?
What is 10,000 J?
200
Who discovered mass and energy can be converted into each other?
Who is Einstein?
200
The type of energy harnessed by using the heat energy in the volcanic vents under the ground is called ______.
What is geothermal energy?
200
What type of energy transformation is there in a bicycle?
What is chemical to kinetic (or mechanical)?
300
What is the work done by carrying a 10 N bag for 10 m with minimal force needed exerted?
What is 0 J?
300
The first asteroid to be discovered is Ceres. It is the largest and most massive asteroid is our solar system’s asteroid belt, having an estimated mass of 895 x 10^18 kg and an orbital speed of 17900 m/s. Determine the amount of kinetic energy possessed by Ceres.
What is 2.87 x 10^29
300
Ima Scaarred (m=30 kg) is traveling at a speed of 10 m/s in a high roller coaster slide. If this is her highest speed on the slide, where in the slide is she?
What is on the very bottom?
300
Solar panels usually are made of ________ cells.
What is photovoltaic?
300
What type of energy transformation is there in a battery?
What is chemical to electric?
400
A new conveyor system at the local packaging plan will utilize a motor-powered mechanical arm to exert an average force of 890 N to push large crates a distance of 12 meters in 22 seconds. Determine the power output required of such a motor.
What is 485 Watts?
400
Li Ping Phar, the esteemed Chinese ski jumper, has a mass of 59.6 kg. He is moving with a speed of 23.4 m/s at a height of 44.6 meters above the ground. Determine the total mechanical energy of Li Ping Phar. (take g to be 10 m/s/s).
What is 42899 J ?
400
The total mechanical energy of roller coaster rider is 100 KJ. If the person has a mass of 100 kg, what is his height at the very top of the slide? (take g to be 10 m/s/s).
What is 100 m?
400
What source of energy is Uranium considered?
What is non-renewable?
400
What type of energy transformation is there in a microwave oven?
What is electric to electromagnetic?
500
Determine the power required for Lamar in deadlifting 300 kg to a height of 0.90 m above the ground within 2 s? (take g to be 10 m/s/s)
What is 1350 W?
500
Chloe leads South’s varsity softball team in hitting. In a game against New Greer Academy this past weekend, Chloe slugged the 181-gram softball so hard that it cleared the outfield fence and landed on Lake Avenue. At one point in its trajectory, the ball was 28.8 m above the ground and moving with a speed of 19.7 m/s. Determine the total mechanical energy of the softball.
What is 86.2 J ?
500
Paige lifts a volleyball, doing 150 J of work on it. The volley ball has a mass of 5 kg. Determine the speed of the ball upon hitting the floor on the opponent's side of the net.
What is 7.7 m/s?
500
What type of energy is hydroelectric considered?
What is renewable?
500
What type of energy transformation is there in a TNT bomb?
What is chemical to thermal?
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