Forces, motion, simple machines and circuits

At which point is kinetic energy utilized when shooting a bow and arrow?

• A. when the arrow is being aimed at the target

• B. when the arrow is released from the bow

• C. when the arrow is loaded onto the bow

• D. when the arrow is hitting the target

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What is the difference between potential energy and kinetic energy?

• A. Potential energy is the energy of an object due to its position, while kinetic energy is energy due to its motion.

• B. Potential energy is the energy of an object due to its motion, while kinetic energy is energy due to its position.

• C. Potential energy is the energy of an object due to an applied force, while kinetic energy is energy stored after the applied force

• D. Potential energy is the energy stored after an applied force, while kinetic energy is the energy used from the applied force.

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4. Which are the two types of mechanical energy?

• A. thermal and kinetic

• B. potential and kinetic

• C. potential and thermal

• D. kinetic and electromagnetic

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While on a movie set, a stuntman jumps off the roof of a building. As he falls toward an airbag, what is increasing?

• wind velocity

• gravity

• potential energy

• kinetic energy

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As the velocity of a runner increases, which type of energy also increases?

• Potential

• Thermal

• Chemical

• Kinetic

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How does the energy of a roller-coaster cart change as the cart travels from the top of the roller coaster to the bottom?

• The cart has potential energy at the top that is transformed to kinetic energy as it moves to the bottom.

• The cart has greater kinetic energy at the top than it does at the bottom.

• The cart has no energy at the top and more energy at the bottom.

• The cart has less potential energy at the top than it does at the bottom

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As Bobby entered a dark room, he pushed the switch on the wall to turn on the light. What makes the light turn on when Bobby pushes the switch?

• gravity

• electricity

• magnetism

• friction

. Which of the following BEST describes the function of a resistor in an electrical circuit?

• It controls the amount of current.

• It opens the circuit.

• It creates the electric field.

• It provides energy to the circuit.

Which best describes the work done when pushing a bicycle up a hill?

• The bicycle gains energy only when the person pushing gets tired.

• Energy is transferred from the bicycle to the person pushing.

• Energy is transferred from the person pushing to the bicycle.

• The energy of the bicycle remains constant.

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NGSS.MS-PS3-1

NGSS.MS-PS3-5

When bowling, which type of energy is transferred at the moment the rolling bowling ball knocks down the bowling pins?

• thermal

• electrical

• mechanical

• electromagnetic

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