Energy, motion, force
This is what is needed to move objects or do work
Energy
What is power in relation to work
Power is work done over a certain amount of time
This is a type of nuclear reaction where a nucleus splits into smaller pieces releasing the stored energy
What is nuclear fission
This form of potential energy is considered to be stored energy in the nucleus
What is nuclear energy?
These are the 2 conditions that must be met in order for work to be done...
The direction of the force must be in the same direction as the motion.
A child throws a ball up in the air 3 meters with a force of 20 newtons over 3 seconds, how much power was done?
What is 20 watts
A swing involves what 2 forms of energy
what is gravitational and elastic potential energy
This type of energy happens when something is stretched or compressed
Elastic potential energy
These are the 2 things that affect kinetic energy
Speed and mass
This form of energy is what plants make during photosynthesis
What is chemical energy
Julie attempts to move a heavy box with a force of 20 newtons over 0 meters, how much work was done?
Trick question: No work was done because she did not move the box
Mechanical energy is changed into electrical energy.
What are the 3 forms of energy that have both potential and kinetic energy
What are mechanical, electrical and thermal
which two forms of energy include kinetic energy and are involved when burning a candle
what are electromagnetic radiation and thermal energy.
This is why the amount of energy going in must be the same amount coming out
Law of conservation of energy
Camilo kicks a ball with a force of 8 Newtons over a distance of 5 meters in 2 seconds. How much power did he use to complete this?
What is 20 watts
This is the energy found in bonds, includes fuel and food (SUGAR)
What is chemical energy
Greatest potential energy in swinging pirate ship
What is the highest point on either side that the pirate ship will reach
This is the name of the relationship between potential energy and kinetic energy
What is inversely proportional?
This is an example of not doing work
carrying something or putting something down
Josh throws an object 2 meters across the room with a force of 0.7 newtons in 3 seconds, how much power did he use? Round your answer to the nearest thousandth place
0.467 watts
sunlight helps plants make food (sugar) and animals use this to move from place to place, name the 3 forms of energy involved
Electromagnetic, chemical, kinetic or mechanical
These are the 2 ways that will increase the gravitational potential energy
What are to increase the weight and/or increase the height
What happens to kinetic energy as gravitational potential energy goes up?
Kinetic energy goes down (inversely proportional)