DE_Phys_3.1 Types of Energy
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Last updated over 2 years ago
18 questions
Background Knowledge (Engage)
1
What do you already know about types of energy?
What do you already know about types of energy?
2
Categorize the following examples on if they represent kinetic or potential energy.
Categorize the following examples on if they represent kinetic or potential energy.
- running a race
- lying on a table
- chemical energy in food
- spinning in a dance
- a compressed spring
- Kinetic Energy
- Potential Energy
2
A ____________ converts electrical energy into thermal energy.
A _________________ converts rotational energy into electrical energy.
A __________________________________ converts gravitational energy into mechanical energy.
A ________ converts rotational energy into mechanical energy.
Other Answer Choices:
car
wind turbine
toaster
roller coaster going downhill
Two Main Types of Energy (Explore 1)
1
Kinetic Energy is the energy of motion. The kinetic energy of an object is proportional to its mass and the square of its velocity. What is the equation to calculate kinetic energy?
Kinetic Energy is the energy of motion. The kinetic energy of an object is proportional to its mass and the square of its velocity. What is the equation to calculate kinetic energy?
1
Match the type of potential energy with the matching description.
Match the type of potential energy with the matching description.
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
Chemical Potential Energy | arrow_right_alt | Stored in the bonds between atoms and molecules. |
Gravitational Potential Energy | arrow_right_alt | Stored in electric fields between charged particles. |
Elastic Potential Energy | arrow_right_alt | Stored in the object when the object is lifted against the force of gravity |
Electric Potential Energy | arrow_right_alt | Stored in a material is stretched or compressed |
1
Match the type of potential energy with the matching equation.
PEelastic = ________
PEgrav = ________
PEelec = ________
Other Answer Choices:
2
Name each section of the electromagnetic spectrum
Other Answer Choices:
Microwaves
Radio Waves
Ultraviolet
Gamma-rays
Infrared
Visible Light
X-rays
2
All electromagnetic waves, including visible light waves, are made up of _______ and _______ fields. These fields lie in _______ that are perpendicular to one another, and they _______ in phase with each other. Like mechanical waves, such as sound or water waves, electromagnetic waves carry _______ from one location to another. However, unlike mechanical waves, electromagnetic waves do not need a _______ in order to travel; they can move through a vacuum.
1
What are the three ways heat energy can be transferred?
What are the three ways heat energy can be transferred?
Kinetic Energy, Mass, and Velocity (Explore 2)
1
It is possible to rearrange the equation for kinetic energy to solve for different variables such as velocity. This will be helpful in cases where the total kinetic energy and the mass are known but the velocity is unknown.What is the equation to find velocity using kinetic energy?
It is possible to rearrange the equation for kinetic energy to solve for different variables such as velocity. This will be helpful in cases where the total kinetic energy and the mass are known but the velocity is unknown.
What is the equation to find velocity using kinetic energy?
1
A 2,300-kg truck is traveling down a highway at 32 m/s. What is the kinetic energy of the truck in Joules (J)?
A 2,300-kg truck is traveling down a highway at 32 m/s. What is the kinetic energy of the truck in Joules (J)?
1
A 35-kg boy is riding an 18-kg bicycle down a path. The bicycle is moving at 11 m/s.Calculate the kinetic energy of the boy and the bicycle in Kilojoules (KJ). (rounding your answer to the nearest tenth).
A 35-kg boy is riding an 18-kg bicycle down a path. The bicycle is moving at 11 m/s.
Calculate the kinetic energy of the boy and the bicycle in Kilojoules (KJ). (rounding your answer to the nearest tenth).
1
A 0.450 kg soccer ball has a kinetic energy of 119 J.Calculate the velocity of the soccer ball (rounding your answer to the integer). Include units.
A 0.450 kg soccer ball has a kinetic energy of 119 J.
Calculate the velocity of the soccer ball (rounding your answer to the integer). Include units.
1
A 0.041 kg bullet has a kinetic energy of 660 J. What is the velocity of the bullet?
A 0.041 kg bullet has a kinetic energy of 660 J. What is the velocity of the bullet?
Conversions between Kinetic and Potential Energy (Explore 3)
1
As an object falls, it loses _______ because it decreases in height above the ground, but it gains _______ because its speed increases. The amount of gravitational potential energy that an object loses as it falls is _______ to the amount of kinetic energy that the object gains.
1
If an object of mass m at rest falls from a height h1 to a height h2, the magnitude of its velocity increases to v. How is this described in an equation?
If an object of mass m at rest falls from a height h1 to a height h2, the magnitude of its velocity increases to v.
How is this described in an equation?
1
The first hill of a roller coaster is 42.0 meters high. The roller coaster drops to a height of 4.2 meters above the ground at the bottom of this first hill.
If the mass of the roller coaster is 34,500 kg, what is the velocity at the bottom of the first hill? Ignore friction and assume the velocity at the top of the first hill is 0 m/s.
The first hill of a roller coaster is 42.0 meters high. The roller coaster drops to a height of 4.2 meters above the ground at the bottom of this first hill.
If the mass of the roller coaster is 34,500 kg, what is the velocity at the bottom of the first hill? Ignore friction and assume the velocity at the top of the first hill is 0 m/s.
1
The first hill of a roller coaster is 42 meters high. The top of the second hill of the roller coaster is 33 meters high. The mass of the roller coaster is 34,500 kg.
Calculate the velocity of the roller coaster at the top of the second hill (rounding your answer to the integer). Ignore friction and assume the velocity at the top of the first hill is 0 m/s.
The first hill of a roller coaster is 42 meters high. The top of the second hill of the roller coaster is 33 meters high. The mass of the roller coaster is 34,500 kg.
Calculate the velocity of the roller coaster at the top of the second hill (rounding your answer to the integer). Ignore friction and assume the velocity at the top of the first hill is 0 m/s.