Which set of terms best defines what affects kinetic energy and potential energy, respectively?
A powered winch is used to pull a sailboat to shore. The winch uses a 900 cap w motor. If the motor is used for 30 s , how much work does it do? (Power: cap p is equal to cap w over t )
If the kinetic and potential energy in a system are equal, then the potential energy increases. What happens as a result?
As a person pushes a box across a floor, the energy from the person’s moving arm is transferred to the box, and the box and the floor become warm. During this process, what happens to energy?
What is needed for work to be done?
What is the unit of measure for energy?
Which activity directly converts energy from the Sun into chemical energy?
When Javier touches a hot mug of tea, energy is transferred from the surface of the mug to his hand. What kind of energy is this?
When a person strikes and lights a match, potential energy in the match is transformed into which types of energy?
Which term is the product of force and distance?
What is the source of almost all energy on Earth?
What are the two main types of energy?
Tina and her puppy are tugging on a rope, each pulling on opposite ends. When is Tina doing work?
Which two types of potential energies would be types of mechanical energies?
The amount of kinetic energy an object has depends on which feature of the object?
Adita lifts a book from the floor, carries it across the room, and places it on a high shelf. When is Adita doing work on the book?
Which is occurring when work is being done?
Seema knows the mass of a basketball. What other information is needed to find the ball’s potential energy?
A gust of wind blowing east pushes against a ball. When will the wind do work on the ball?
When a spring is compressed, the energy changes from kinetic to potential. Which best describes what is causing this change?
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