The transfer of energy that occurs when a force makes an object move
What is work?
You carry a box that weighs 5 N a distance of 5 Meters. How much work did you performed?
What is 25 J?
The biggest source of light energy
What is the sun?
Energy is ...
What is the ability to do work?
Complete the sentence below:
Mechanical energy is the ________ of ____________ and _____________.
What is sum, potential and kinetic?
What is the formula for both kinetic and potential energy? Be sure to state which is which.
What is
KE = 1/2mv2
PE = mgh
What are three ways heat can be transferred?
What is conduction, convection, and radiation?
This is a special covalent compound in which two atoms of the same element bond to each other. Also, list which elements fall into this category.
What is diatomic? The elements are H2, N2, O2, F2, Cl2, Br2, and I2
This is the formula for work
What is force x distance?
A motor lifts a box. It uses 821 J in 5 seconds. How much power does the motor use? (Round to the hundredth [132.32] and don't forget unit)
What is 164.2 W?
Define Nuclear Energy
What is energy stored in the nucleus of an atom?
The unit for energy is ...
What is joules?
This is the energy of motion.
What is kinetic energy?
____________ can change kinetic energy into thermal energy.
What is friction?
Heat travels from _____________ to ____________
What is from hot to cool?
This is the unit for work
What is joule?
Misfortune occurs and Renatta and her friends find themselves getting a workout. They apply a cumulative force of 2793 N to push the car 279 m to the nearest fuel station. Determine the work done on the car.
(Round to the hundredth [132.32] and don't forget unit)
What is 779,247 J?
What energy CHANGE takes place when someone plugs a radio into an electrical outlet and plays music?
What it electrical energy changes into sound energy
This states that energy can neither be created nor destroyed, but transfered.
What is the Law of Conservation of Energy?
This is stored energy.
What is potential energy?
This is the energy found in stretched rubber bands and springs ( state the type and state of the energy).
What is elastic potential energy?
The air inside a room is often warmer near the ceiling than near the floor. This transfer of heat is known as _____________.
What is convection?
The amount of work done in a given amount of time. Also state what unit it is in.
What is work and in watts?
A student pushes a box with a constant force of 201 N across the floor for a distance of 9 meters in 56 seconds. What is the power generated by the student?
(Round to the hundredth [132.32] and don't forget unit)
What is 32.30 W?
This form of energy is caused by object's vibrations that transmits energy through the air (a medium) around it.
What is sound energy?
What form of energy include examples like power lines, x-rays, and light sources.
What is radiant / light energy?
This type of energy increases in height?
What is potential energy?
An object has a gravitational potential energy of 32,000 J and has a mass of 746 kg. How high is it above ground? (Round to the hundredth [132.32] and don't forget unit)
What is 4.37 m?
This type of heat can travel through space as electromagnetic waves.
What is radiation?
In order to do work on an object, this must be in the same direction as the object moves
What is the force?
Which involves more work? lifting 40N up 2m or lifting 80N up 1m? (Round to the hundredth [132.32] and don't forget unit)
Its the same
This type of energy is used when you digest food.
What is chemical energy?
This type of energy is created by the movement of electrons.
What is electrical energy?
Assume the height at Point A and G are the same.
As the ball moves from point A to point G, (ignoring friction) the total energy of the ball is ...(also tell me what state the energy is in as it moves).
What is stays the same, but is converted between potential and kinetic energy.
An object has a kinetic energy of 74 J and a mass of 18 kg, how fast is the object moving? (Round to the hundredth [132.32] and don't forget unit)
What is 2.87 m/s?
When I put my had on the eye of a hot stove, how does the heat travel?
(Give me the type of heat transfer, where the heat is traveling from and where it is traveling to)
What is conduction and the heat travels from the eye of the stove into my hand. Ouch!