What is the formula for calculating potential energy?
Mass × Gravity × Height
100
What is the formula for calculating kinetic energy?
0.5 × Mass × Velocity ^2
100
In calculating potential and kinetic energy what unit is used for height?
Meters
100
Define energy?
The ability to do work
200
Define Velocity
Velocity is distance over time and how fast an object is traveling
200
Calculate the potential energy of a rock that is 60 kg and is 10 m high
5880 J
200
Which has more kinetic energy a ball moving at 5 m/s or a ball moving at 3 m/s
The ball moving at 5 m/s
200
What unit is used for mass?
Kilograms
200
Why do you come back when jump in the air?
Due to gravity which is 9.8 m/s^2 on Earth
300
Kinetic is energy in motion potential is energy that is stored
What is the difference between kinetic and potential energy
300
Calculate the potential energy of a table that is 3 kg and is 117 m tall
3439.8 J
300
Calculate the kinetic energy of a ball that is 7 kg and is thrown at a velocity of 21 m/s
5402.25 J
300
What unit is used for velocity?
Meters/Second^2
300
List 3 forms of Potential Energy
Gravitational, Elastic, Chemical
400
Define Gravity
Gravity is the force that pulls us down on Earth it is at a rate of 9.8 m/s^2
400
Which has more potential energy a ball on the ground or a ball that is on a hill that is 1.7 m tall
The ball on the hill because gravity and height influence potential energy
400
A computer weighs 3 kg and is thrown at a velocity of 5 m/s. Calculate the kinetic energy.
56.25 J
400
What unit is used for kinetic energy?
Joules
400
List 3 forms of Kinetic Energy
Mechanical, Heat, Light, Sound
500
What is height and how is it measured as it relates to potential energy?
Height is how tall something is which affects the potential energy we measure this in meters
500
Why might there be more potential energy at the top of the roller coaster vs. the end of the roller coaster
The top of the roller coaster would have more potential energy because of the fact that it is at the top of a hill which will include a significant drop
500
A cart is weighs 15 kg and is going at a velocity of 60 m/s. Calculate the kinetic energy.
202,500 J
500
What unit is used for potential energy?
Joules
500
What does the law of conservation of energy state?
Energy cannot be created nor destroyed, only transformed in a new form