Energy
Energy cannot be
created or destroyed
Different foods store different amounts of
energy
What is an example of a pendulum
A light swinging back and forth
What are potential and kinetic energy
stored and motion energy
Which one is better for the environment renewable or nonrenewable
renewable
Energy is the ability to
make something happen
What do we measure energy in food in?
Joules (J)
yes
Do potential and kinetic energy work together
Yes
Our use of energy resources has increased dangerously in the last
200 years (2 centries)
Energy can be
Stored and transferred
How many kilojoules does an average adult need a day?
10,000
The total amount of energy in an isolated system remains the
same before and after energy transfers
What has more energy potential or kinetic energy
kinetic
Many countries are now trying to increase their use of
renewable resources
What would happen if there was no energy in the world?
Telephone lines would be down, there would be no more AC, no more electric cars,
1 kilojoule= how many joules
1,000 j
What is GPE
Gravitational Potential Energy
Would you have more kinetic energy if you are traveling fast or slow?
fast
in The 1900s the first fossil fuel to become widely used is
coal
who are the best teachers
Maddy, and Jackson
A person’s energy requirements depends on their
age, size, and level of physical
The total amount of energy within an isolated system remains
constant
is a running woman potential energy
No, because she is moving
What would not hurt the animals
The increase of renewable resources