Vocabulary 1
Vocabulary 2
Math in Science
Formula's Applied
Kinetic and Potential
100
A push or a pull
What is a force?
100
The energy of motion
What is kinetic energy?
100
What is the formula for Work
W = Force X Distance
100
While Robert was helping his father in the garden, he pushed a shovel into the ground to dig a hole in the dirt. He picked up a shrub, carried it to the hole, and held it while he lowered it into the hole. During which part of this process does Robert NOT do work?
When he carried it to the hole and when he lowered in into the hole.
100
This graph describes a ball rolling down a hill. According to this graph, what is the mechanical energy of the ball?
5 joules
200
Force applied to an object causing it to move
What is work?
200
Energy of molecules moving faster
What is thermal energy?
200
What is the formula for power?
Power = Work / time
200
Calculate the energy transferred (joules) of a 60 Watt light bulb running for 30 seconds
Power = Work/Time
60 (watts) = Work (joules)/30 (seconds)
60 x 30 = 1800 joules
200
What would happen to total mechanical energy if the ball came to a stop on the ground at the bottom of the hill.
It would have no mechanical energy.
300
The rate at which work gets done
What is Power?
300
Energy from the nucleus of an atom, usually accomplished by fission or fusion.
What is nuclear energy?
300
What is the formula for kinetic energy?
KE = 1/2 x Mass x speed2
300
Calculate the kinetic energy of a 400 kg horse running at 14 meters per second
KE = 1/2 x Mass x speed2
KE = 0.5 x 400 x (14x14)
KE = 200 x 196
KE = 39,200 Joules
300
At what point on the track does the car have the greatest potential energy?
At the top of the highest hill
400
Potential energy based on vertical position
What is gravitational potential energy?
400
Energy from the chemical bonds between atoms
What is chemical energy?
400
What is the formula for Gravitational Potential Energy?
GPE = weight x height
400
Calculate the Gravitational Potential Energy of 15 Newton Bird Feeder on a pole 3 meters in the air
GPE = weight x height
GPE = 15 x 3
GPE = 45 Newtons
400
At what point on the track does the car have the greatest kinetic energy?
At the bottom of the first and highest hill.
500
Potential energy based on an object being stretched or compressed
What is elastic potential energy?
500
The total of kinetic and potential energy in a given object.
What is mechanical energy?
500
Complete the Chart
Force is measured in . . .
Work is measured in . . .
Power is measured in . . .
Newtons
Joules
Watts
500
Sunlight enables plants to use water and carbon dioxide during photosynthesis to make and store sugar. Any animal that eats the plants can convert the sugar into the energy it needs to move from place to place. Which three types of energy are involved in this example?
chemical, thermal, electromagnetic (light), kinetic
500
What is the kinetic energy of the ride turned into as the ride goes on. Include at least 2 energy transformations.
Electrical, sound, thermal,