Energy flashcards

highschool level physics

What is Energy?

Energy is the capacity of an object or system to perform work, which can result in a change in the object's state or position.

What is the Unit of Energy?

The standard unit of energy in the International System of Units (SI) is the Joule (J).

What is Mechanical Energy?

Mechanical Energy refers to the energy associated with the motion (kinetic energy) and position (potential energy) of an object.

What is Chemical Energy?

Chemical Energy is the energy stored in the bonds of chemical compounds, which can be released during a chemical reaction.

What is Thermal Energy?

Thermal Energy, also known as heat energy, is the energy that comes from the temperature of matter, which is due to the kinetic energy of its molecules.

What is Nuclear Energy?

Nuclear Energy is the energy released during nuclear fission or fusion, the processes of splitting or merging atomic nuclei.

What is Radiant Energy?

Radiant Energy is the energy carried by electromagnetic waves, such as light and radio waves.

What is Electric Energy?

Electric Energy is the energy resulting from the flow of charged particles, typically electrons, through a conductor.

What is Work in physics?

In physics, work is done when a force causes an object to move and results in a change in its energy.

What is the Formula for Work?

The formula for calculating work (W) is W = Fd, where F is the force applied and d is the distance moved in the direction of the force.

What is Power?

Power is the rate at which work is done or energy is transferred over a specific period of time.

What is the Formula for Power?

The formula for power (P) is P = W/T, where W is work done, and T is the time taken.

What is the Unit of Power?

The standard unit of power is the Watt (W), which is defined as one joule per second.

What is Horsepower?

Horsepower is a unit of power that is commonly used to measure the output of engines, where 1 horsepower equals 746 Watts.

What is the Kinetic Energy Formula?

The formula for Kinetic Energy (KE) is KE = 1/2mv², where m is the mass and v is the velocity of the object.

What is the Potential Energy Formula?

The formula for Potential Energy (PE) is PE = mgh, where m is the mass, g is the acceleration due to gravity, and h is the height above a reference point.

What does the Law of Conservation of Energy state?

The Law of Conservation of Energy states that energy cannot be created or destroyed; rather, it can only change forms.

What is Hooke’s Law?

Hooke’s Law states that the force required to extend or compress a spring by some distance is proportional to that distance, within the elastic limit.

What is Momentum?

Momentum is a physical property of an object that represents the quantity of motion it has, which depends on its mass and velocity.

What is the Momentum Formula?

The formula for Momentum (P) is P = m × v, where m is the mass of the object and v is its velocity.

What is the Unit of Momentum?

The unit of momentum is kilogram meter per second (kg·m/s).

What are the Types of Mechanical Energy?

The two main types of Mechanical Energy are Potential Energy, which is associated with position, and Kinetic Energy, which is related to motion.

Where is Greatest Potential Energy found on a Roller Coaster?

The greatest Potential Energy on a roller coaster is found at the highest point of the track, also known as position A.

Where is Greatest Kinetic Energy found on a Roller Coaster?

The greatest Kinetic Energy on a roller coaster is found at the lowest point of the track, known as position B.