A 16-pound bowling ball strikes a 3.5-pound bowling pin. The pin is moving very fast after the collision. It has a large increase in velocity as a large amount of kinetic energy is transferred to it. Where does the energy come from?(1 point)
Responses
It is lost by the bowling ball, which would have an equal decrease in velocity.
It is lost by the bowling ball, which would have an equal decrease in velocity.
It is lost by the bowling ball, which would have a smaller decrease in velocity.
It is lost by the bowling ball, which would have a smaller decrease in velocity.
It is lost by the bowling ball, which would have no change in velocity.
It is lost by the bowling ball, which would have no change in velocity.
It is lost by the bowling ball, which would have a larger decrease in velocity.
It is lost by the bowling ball, which would have a larger decrease in velocity.
A mother and her small child are standing in an inflatable bouncy house on opposite sides. The mother jumps up and comes back down again, transferring her kinetic energy to the child through the floor. How will the motion of the small child change?(1 point)
Responses
The child will move up at the same speed at which the mother came down.
The child will move up at the same speed at which the mother came down.
The child will move down at the same speed at which the mother came down.
The child will move down at the same speed at which the mother came down.
The child will move up at a slower speed because the child has less mass.
The child will move up at a slower speed because the child has less mass.
The child will move up at a faster speed because the child has less mass.
Water moves through a hydroelectric dam. Which statement describes the changes in energy that occur? (1 point)
Responses
Energy changes from kinetic to electric to potential.
Energy changes from kinetic to electric to potential.
Energy changes from kinetic to potential to electric.
Energy changes from kinetic to potential to electric.
Energy changes from potential to electric to kinetic.
Energy changes from potential to electric to kinetic.
Energy changes from potential to kinetic to electric.
you where wrong bot
I apologize for the incorrect response. The correct answer is: Energy changes from kinetic to potential to electric.
Which place is the best choice for a wind farm?(1 point)
Responses
a place where the wind has more potential energy to convert into kinetic energy
a place where the wind has more potential energy to convert into kinetic energy
a place where the wind has more kinetic energy to convert into potential energy
a place where the wind has more kinetic energy to convert into potential energy
a place where the wind has more kinetic energy to convert into electrical energy
a place where the wind has more kinetic energy to convert into electrical energy
a place where the wind has more potential energy to convert into electrical energy
the right anwser
The correct answer is: a place where the wind has more kinetic energy to convert into electrical energy.
Which is a good description of kinetic energy?(1 point)
Responses
energy of motion
energy of motion
conserved energy
conserved energy
stored energy
stored energy
energy from the sun
The correct answer is: 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 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 is still rising
the right anwser
The correct answer is: when the ball reaches its highest point.
Energy of Motion Unit Test
3 of 103 of 10 Items
Question
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
Maddie’s object had a faster drop speed.
Maddie’s object had a faster drop speed.
Naveed’s object had greater kinetic energy.
Naveed’s object had greater kinetic energy.
Maddie’s object has a smaller width.
Maddie’s object has a smaller width.
Naveed’s object has less mass.
Naveed’s object has less mass.
Skip to navigation
the rigth anwser
The most likely explanation for the results is that Naveed's object had greater kinetic energy.
Energy of Motion Unit Test
3 of 103 of 10 Items
Question
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
Maddie’s object had a faster drop speed.
Maddie’s object had a faster drop speed.
Naveed’s object had greater kinetic energy.
Naveed’s object had greater kinetic energy.
Maddie’s object has a smaller width.
Maddie’s object has a smaller width.
Naveed’s object has less mass.
Naveed’s object has less mass.
Skip to navigation
whats the right anwser
The correct answer is: 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 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 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 of the same mass from the same height.
She should drop two balls of the same mass from the same height.
whats the right anwser
The correct answer is: 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
100 grams of dirt falling at 15 m/s
100 grams of dirt falling at 15 m/s
10 grams of water falling at 1 m/s
10 grams of water falling at 1 m/s
100 grams of water falling at 10 m/s
100 grams of water falling at 10 m/s
10 grams of dirt falling at 2 m/s
right anwser
The correct answer is: 10 grams of dirt falling at 2 m/s.
Four rivers have the same volume of water flow over time but fall from different heights to power hydroelectric dams. Which dam would provide the most hydroelectric power?(1 point)
Responses
dam C: fall height of 135 feet
dam C: fall height of 135 feet
dam D: fall height of 100 feet
dam D: fall height of 100 feet
dam B: fall height of 75 feet
dam B: fall height of 75 feet
dam A: fall height of 175 feet
whats the anwser