General Energy Info.
When an atom is split.
What is fission?
Unit of force.
What is a Newton
A woman lifts a box 2 m with a force of 35 N. How much work did she do?
70 J
Energy an object has due to its motion, position or condition. (Kinetic + Potential)
What is mechanical energy?
When atoms are joined. Happens in stars.
What is fusion?
Unit of work.
What are Joules?
A climber does 20,000 J of work in 25 seconds while moving equipment. How much power is used?
800 W
Stored energy due to position.
What is gravitational potential energy?
Unit of power.
What are Watts?
A student pulls a 200 N sled a distance of 4 m. It takes 8 seconds to move the sled. How much power was used?
100 W
Stored energy that an object has due to its shape.
What is elastic potential energy?
What is the energy transformation of a pencil sharpener?
What is electrical to sound, kinetic, mechanical, or thermal.
Energy that increases when atoms or molecules start moving faster.
What is thermal?
Unit of distance.
What are meters?
Calculate the potential energy of a 100 N rock sitting on a cliff 20 m high.
2000 J
If you ride your bike up a hill, what kind of energy is increasing?
What is potential energy?
Energy in a battery.
What is chemical energy?
Sunlight is a form of this energy.
What is electromagnetic?
Unit of energy.
What are Joules?
Calculate the kinetic energy of a 11 kg cat running at a speed of 3 m/s.
49.5 J