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What factors impact the kinetic energy of an object?(1 point)
Responses
Weight and speed
Weight and height
Mass and speed
Mass and height
The correct answer is: Mass and speed.
The student claims that a ball dropped 3.0 meters would have fewer than 96 joules of kinetic energy upon hitting the ground. Is she correct? Why?
(1 point)
Responses
She is right! The higher the drop, the greater kinetic the ball will have upon hitting the ground.
She is right! The higher the drop, the greater kinetic the ball will have upon hitting the ground.
She is right! The higher the drop, the less kinetic energy the ball will have upon hitting the ground.
She is right! The higher the drop, the less kinetic energy the ball will have upon hitting the ground.
She is wrong. The higher the drop, the more kinetic energy the ball will have upon hitting the ground.
She is wrong. The higher the drop, the more kinetic energy the ball will have upon hitting the ground.
She is wrong. The higher the drop, the less kinetic the ball will have upon hitting the ground.
She is wrong. The higher the drop, the more kinetic energy the ball will have upon hitting the ground.
Kendra loves rolling down hills. She finds a steep hill to roll down. As she is rolling, when is her kinetic energy most likely the highest?(1 point)
Responses
at the bottom of the hill just as she has stopped rolling
at the bottom of the hill just as she has stopped rolling
at the bottom of the hill right before she stops rolling
at the bottom of the hill right before she stops rolling
just after the top of the hill right as she starts rolling down the hill
just after the top of the hill right as she starts rolling down the hill
at the top of the hill right before she has started rolling down the hill
at the bottom of the hill right before she stops rolling
Two cars in motion have equal mass. Which car has more kinetic energy? (1 point)
Responses
the car with the greatest speed
the car with the greatest speed
the car with the greatest size
the car with the greatest size
the car with the greatest acceleration
the car with the greatest acceleration
the car with the greatest volume