Test- Unit 7 Energy Flashcards
At what point does the roller coaster have the most potential energy?
It is at the lowest point.
U7 c1 pg. 1
Energy stored in food would be considered as what?
Chemical potential energy.
U7 c1 pg.3
What point does the bat have the most kinetic energy.
In the middle of the swing
U7 c1 pg.2
When oil is burned to produce electricity, the electrical energy produced is less than the potential energy in the oil. Which best explains this observation?
Some of the potential energy in oil is converted into forms of energy other than electricity.
U7 c2 pg 11
When you hold an ice cube, your hand feels cold because?
heat flows from your hand to the ice cube.
U7 c3 pg.19
Heat energy will normally flow from?
Bottom right to top left.
U7 c3 pg 19
A material that resists/limits the flow of heat by conduction, convection, and radiation is what?
Insulator.
U7 c3 pg 19
Which picture shows thermal energy transfer by convection?
The picture of the teapot on the stove.
U7 c3 pg 19
Transfer of energy by the movement of heated particles.
Convection
U7 c3 pg 19
The ____ energy of an object increases with its height.
Gravitational potential
U7 c1 pg 3
The gravitational potential energy of the bat would be the greatest at which height?
The top right before he swings. Point A.
U7 c1 pg 3
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.
U7 c1 pg 3
The kinetic energy of an object increases as its ______ increases.
Velocity
U7 c1 pg 2
Give two examples of conduction.
A pot on the stove and an iron on a ironing board.
U7 c3 pg 19
Conduction is the transfer of heat energy by______?
direct particle contact.
U7 c3 ph 19
