Work and Power Flashcards
Rate at which work is done is.
Force
U7C4 notes
When you hold an ice cube, your hand feels cold because.
Heat flows from your hand t the ice cube.
U7C3 notes
When an object absorbs energy, the change in temperature will be.
Positive
U7C3 notes
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.
U7C1 notes
The diagram to the right shows four locations in a temperature field. The temperature of each location is given in degrees Celsius. Heat energy will normally flow from.
High temps to low temps
U7C3 notes
Two examples of conduction of thermal energy transfer?
Stove to frying pan
Iron to ironing board
U7C2 notes
The picture below shows a person swinging a baseball bat, starting at point A. The gravitational potential energy of the bat would be the greatest at
High GPE and low KE
U7C2 notes
An example that shows thermal energy transfer by convection
Kettle pots water rising because of the hot stove.
U7C2 notes
Energy Transformations: A windmill would be an example of
Kinetic to Electrical
U7c2
When water at 10°C is heated to 20° C its kinetic energy
Increases
U7c3
