Which is a good description of kinetic energy?(1 point)
Responses
energy of motion
energy of motion
energy from the sun
energy from the sun
conserved energy
conserved energy
stored energy
energy of motion
A person throws a ball up into the air. At which point in its path will the ball have the greatest potential energy?(1 point)
Responses
when the ball leaves the person’s hand
when the ball leaves the person’s hand
when the ball is still rising
when the ball is still rising
when the ball reaches its highest point
when the ball reaches its highest point
when the ball hits the ground
when the ball hits the ground
when the ball reaches its highest point
Use the table of information from an investigation to answer the question.
Student Depth of Object in Sand (cm)
Maddie 1.8
Naveed 4.0
Two students drop an object into sand from a height of 1.5 meters. They record the depth of the hole made in the sand by each student’s object. What is the most likely explanation for the results?
(1 point)
Responses
Naveed’s object has less mass.
Naveed’s object has less mass.
Naveed’s object had greater kinetic energy.
Naveed’s object had greater kinetic energy.
Maddie’s object had a faster drop speed.
Maddie’s object had a faster drop speed.
Maddie’s object has a smaller width.
Maddie’s object has a smaller width.
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Naveed’s object had greater kinetic energy.
A student wants to determine the effect of mass on kinetic energy. She will drop two balls of the same size into a pool of water. Which investigation method should the student use?(1 point)
Responses
She should drop two balls of the same mass from different heights.
She should drop two balls of the same mass from different heights.
She should drop two balls with different masses from different heights.
She should drop two balls with different masses from different heights.
She should drop two balls with different masses from the same height.
She should drop two balls with different masses from the same height.
She should drop two balls of the same mass from the same height.
She should drop two balls with different masses from the same height.
Which falling object will result in the least kinetic energy when it collides with the ground?(1 point)
Responses
10 grams of water falling at 1 m/s
10 grams of water falling at 1 m/s
10 grams of dirt falling at 2 m/s
10 grams of dirt falling at 2 m/s
100 grams of water falling at 10 m/s
100 grams of water falling at 10 m/s
100 grams of dirt falling at 15 m/s