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?
She is wrong. The higher the drop, the more 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 right! The higher the drop, the greater kinetic 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.
On the ramp shown below, a student releases two identical objects at different starting points. The student releases Object 1 first. The diagram below shows the positions of Objects 1 and 2 in motion.
Which has the highest kinetic energy?
Object 1
Object 2
Both objects have the same kinetic energy.
Both objects have zero kinetic energy.
Both objects have the same kinetic energy.
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?
at the top of the hill right before she has started rolling down the hill
just after the top of the hill right as she starts rolling down the hill
at the bottom of the hill right before she stops rolling
at the bottom of the hill just as she has stopped rolling
At the bottom of the hill right before she stops rolling.
Two cars in motion have equal mass. Which car has more kinetic energy?
The answer depends on the speed of the cars. Kinetic energy depends on both mass and velocity. If the two cars have different velocities, then the car with the higher velocity will have more kinetic energy. However, if the two cars have the same velocity, then they will have the same kinetic energy because they have equal mass.
Two cars in motion have equal mass. Which car has more kinetic energy? (1 point)
Responses
the car with the greatest volume
the car with the greatest size
the car with the greatest speed
the car with the greatest acceleration