Test-Unit 7 Flashcards
The transfer of energy by the movement of heated particles…
Convection
Energy stored in food would be considered…
Chemical potential
Plastic is an example of…
An insulator
Energy Transformations: A toaster would be an example of..
Electrical to thermal
The gravitational potential energy of the bat would be in the greatest at…
at the highest point of the swing
Green plants convert light energy from the sun into___ during photosynthesis
Chemical potential energy
As the time required to do a given amount of work decreases, the power developed…
Increases
A medicine ball has 10 J of energy and is thrown upward with a velocity of 2 m/s. What is its mass?
5 kg
A constant force of 2.0 N is used to push a 3.0 kg box 4.0 m across the floor. How much work is done?
8 J
Heat energy will normally flow from…
high temp to lowest temp B- 35 to 20*C
A material that resists/limits the flow of heat by conduction, convection, and radiation is an…
Insulator
Through which of the following will convection most likely occur?
Liquids and gases
When you hold an ice cube, your hand feels cold because…
Heat flows from your hand to the ice cube.
