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Question 1

What is gpe? what is gpe formula?

Answer 1

Gpe is types of pe based on objects mass or height. The formula is gpe=mxgxh 9.8 m/s squared

Question 2

What is kinetic energy and its formula?

Answer 2

Energy of motion, Ke= 1/2mv squared

Question 3

What are conductors and and example?

Answer 3

Allows energy to flow through easily. Ex: metals

Question 4

what are insulators and examples?

Answer 4

slows down energy transfer. Ex: Styrofoam, grass

Question 5

What is the order of energy transformation in a roller coaster?

Answer 5

Chemical energy to mechanical energy (going up) gpe to ke (going down) ke to pe (when down then up)

Question 6

LCE?

Answer 6

Energy is the same amount b4 and after transformation. Energy cannot be created or destroyed.

Question 7

Example of energy transformation

Answer 7

Turning on a light bulb is first electrical energy (outlet) to light energy (bulb glows) to thermal energy (warms up)

Question 8

Energy transformation at different power plants

Answer 8

Wind turbines converting wind to mechanical energy, then to electricity. Solar panels converting sunlight to electricity.

Question 9

What is energy efficiency?

Answer 9

Using less energy for the same amount of outcome

Question 10

What types of light bulbs and appliances are most efficient?

Answer 10

Compact fluorescent lightbulb because it doesn’t take up much energy and lasts 2,000 hours.

Question 11

What is heat? How does thermal energy transfer?

Answer 11

Movement of thermal energy. Always moves from hot to cold.

Question 12

What is conduction and examples?

Answer 12

Direct contact/touching ex: pot on stove

Question 13

Convection?

Answer 13

Heat transferred trough a gas or liquid (circulation) ex: boiling water, ovens air , oceans mantle

Question 14

radiation

Answer 14

Heat transferred through electromagnetic waves ex: microwave, fire, sun

Question 15

What is non renewable resources and examples

Answer 15

Has a limited supply once up you have no more Ex: nuclear energy, fossil fuels

Question 16

Renewable resources and ex

Answer 16

Has a continuing supply mut be supplied faster than it is used up ex: wind energy solar energy, geothermal, biomass, tidal, hydroelectric

Question 17

biosphere=

Answer 17

life

Question 18

hydrosphere=

Answer 18

water

Question 19

geosphere=

Answer 19

land

Question 20

atmosphere=

Answer 20

air

Question 21

If a hypothesis from data of an experiment fails to support what do you do?

Answer 21

1st you cannot change your hypothesis create a new experiment if needed

Question 22

repetition

Answer 22

completing the experiment multiple times

Question 23

replication

Answer 23

someone else completes the same experiment