Physics Energy and Kinetic Energy Quiz

False (B)

joules

<p>multiplication</p> Signup and view all the answers

<p>Energy which is ready to be transformed into motion or other forms of energy (A)</p> Signup and view all the answers

<p>Energy possessed by a moving object (D)</p> Signup and view all the answers

<p>Kinetic Energy = Energy of an object due to its motion Potential Energy = Energy stored within an object due to its position or condition Thermal Energy = Energy related to the temperature of a system Mechanical Energy = The sum of kinetic and potential energies in a system</p> Signup and view all the answers

<p>True (A)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>Thermal energy</p> Signup and view all the answers

<p>electromagnetic</p> Signup and view all the answers

<p>Infrared radiation (A)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>Mechanical Energy = Energy of a moving object Radiant Energy = Electromagnetic waves from a source Thermal Energy = Energy from particle movement</p> Signup and view all the answers

<p>Temperature is directly related to a substance's thermal energy</p> Signup and view all the answers

<p>radiation</p> Signup and view all the answers

<p>Kinetic Energy (C)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>chemical potential energy</p> Signup and view all the answers

<p>chains</p> Signup and view all the answers

<p>PE = Potential Energy KE = Kinetic Energy chemical energy to electrical energy = Transformation flashlight = example of transformations</p> Signup and view all the answers

<p>Kinetic energy (A)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>gravity</p> Signup and view all the answers

<p>potential</p> Signup and view all the answers

<p>Falling parachute = Potential to kinetic energy A TV = Electrical to light and sound energy Eating food = Chemical to mechanical energy Catapult = Potential to kinetic energy</p> Signup and view all the answers

<p>Start with the formula for energy problems. (C)</p> Signup and view all the answers

<p>True (A)</p> Signup and view all the answers

<p>kinetic and potential</p> Signup and view all the answers

<p>thermal</p> Signup and view all the answers

<p>Isolate the needed variable. (A)</p> Signup and view all the answers

Kinetic energy is the energy an object possesses due to its motion.

Potential energy is stored energy that an object has due to its position, charge, or stresses.

Kinetic energy can be transferred between objects when they collide, or it can transform into other types of energy.

The SI unit for both kinetic and potential energy is the joule, abbreviated as J.

The formula to calculate kinetic energy is KE = 1/2 * mv^2, where KE is kinetic energy, m is mass, and v is velocity.

The acceleration due to gravity is a constant value of 9.8 m/s^2 on Earth, meaning objects with mass are pulled towards Earth at this rate.

Potential energy is stored energy that can be released and transformed into other types of energy, like kinetic energy.

Energy possessed by objects due to their motion.

Energy associated with electromagnetic waves, like light and heat.

A form of radiant energy that our eyes can see.

A form of radiant energy that we feel as heat.

The entire range of electromagnetic waves, from radio waves to gamma rays.

The energy associated with the movement of particles within a substance.

A measure of the average kinetic energy of the particles in a substance.

The process by which energy is transferred as electromagnetic waves.

The process where heat energy is transferred through direct contact between objects of different temperatures.

Energy cannot be created or destroyed, only transformed or transferred from one form or object to another.

The movement of energy between objects while staying the same type of energy, like a bowling ball transferring kinetic energy.

The conversion of energy from one form to another, like in a hydroelectric dam where water's potential energy turns into electrical energy.

The total amount of energy in a system always stays the same, even if it is transformed or transferred.

The presence of energy before it is transferred or transformed into another form or object.

The presence of energy after it has been transformed or transferred into another form or object.

Energy flows into a system, like a river feeding a lake.

Energy flows out of a system, like water flowing out of a pipe.

The form of energy that deals with motion and movement, like a moving ball.

The form of energy stored in an object due to its position or state, like a stretched rubber band.

This formula shows how energy changes from one form to another in a system. KE refers to kinetic energy (energy of motion), PE refers to potential energy (stored energy), and the subscripts 'initial' and 'final' indicate the energy state at the beginning and end of a process.

A sequence of energy transformations that occur one after another, with energy passing from one form to another within a system.

Energy is always transformed from one form to another, never truly lost. It can be transferred, but the total amount always remains constant.

An object that possesses potential energy is capable of performing work due to its position, chemical composition, or other factors.

Energy cannot be created or destroyed, it can only be transformed from one form to another. This principle governs all energy changes in the universe.

A pendulum is a mass attached to a string that swings back and forth due to gravity.

Potential energy is the stored energy an object has due to its position or state. In a pendulum, the potential energy is highest at the top of the swing.

Kinetic energy is the energy of motion. In a pendulum, the kinetic energy is highest at the bottom of the swing.

As the pendulum swings, potential energy transforms into kinetic energy and vice versa. This means the energy is neither created nor destroyed, just transferred from one form to another.

When solving energy problems, always start with the law of conservation of energy formula. Identify which energies have a value and which are zero.

The law of conservation of energy helps us understand how energy interacts within systems, like a pendulum swinging.

Solving energy problems requires understanding the concept of energy transformation, the law of conservation of energy, and how to identify the different forms of energy in a given scenario.