Answers SY2025-26 - 2002040 MJ Comprehensive Science 1 Sem 1 CRTest

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Abin is doing work by lifting a bowling ball. Which statement could be made about the energy in this situation?

Energy is being transferred from the ball to his arm muscles.

Energy is being transferred from his arm muscles to the ball.

Energy would be recorded in units of hertz and power.

Energy would change from potential to chemical.

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Which statement best defines the relationship between work and energy?

Work can transfer energy between objects and increase radiant energy.

Work can transfer energy between objects and cause a change in the form of energy.

Work can transfer energy between objects and decrease nuclear energy.

Work can transfer energy between objects and cause a change in the amount of total energy.

Let's consider a scenario of a roller coaster ride. As the roller coaster at the top begins to descend, it loses height, which means its potential energy decreases and kinetic energy starts increasing and reaches its maximum value.By using the above scenario, which statement best compares potential and kinetic energy?

Objects always have more potential energy than kinetic energy.

Kinetic energy increases and potential energy decreases when the velocity of an object increases.

Only potential energy decreases when an object’s height increases.

Objects always have more kinetic energy than potential energy.

Shondra takes notes in class.

Switch "the energy of moving objects" and "the ability to do work" and place chemical energy under "Forms of energy."

Switch "the energy of flowing electrical charges" and "the energy in a spring" and place kinetic energy under "Forms of energy."

Switch "the energy in the nuclei of atoms" and "the energy stored in objects'" and place nuclear energy under "Main categories of energy."

Switch "the energy from the Sun" and "the energy of a rock on a hill" and place electrical energy under "Main categories of energy."

Ella has a mass of 56 kg, and Tyrone has a mass of 68 kg. Ella is standing at the top of a skateboard ramp that is 1.5 meters tall. Which conclusion is best supported by the given information?

If Tyrone stands at the top of the same ramp, his potential energy will be less than Ella’s.

If Tyrone stands at the top of a 1 m high ramp, his potential energy will be greater than Ella’s.

If Tyrone stands at the top of the same ramp, his potential energy will be the same as Ella’s.

If Tyrone stands at the top of a 2 m high ramp, his potential energy will be greater than Ella’s.

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