Simple Machines
What simple Machine you use to lift a heavy object ?
Pulley
What type of energy starts with the letter K ?
Kinetic Energy
What are 3 types of variables.
Dependent,Independent, and Controlled
What are 3 ways heat is transferred into the atmosphere?
radiation,conduction,convection
If you leave a circuit open it would be called ?
open circuit
Name all the simple machine?
Wheel and Axle, Lever, Incline Plane, Pulley, Screw, Wedge
What is kinetic energy?
the energy of a moving object
What is the definition of a variable
a condition in diffrent amounts or comditions
How does counduction work?
as you hold something hot and it transferes to your hand.
When does a open circuit exist ?
when there is a gap or break in the circuit
What simple machine do you use to make something secure?
Screw
What is chemical energy ?
a energy of chemical substance's
What an independent variable?
It is a variable that stands alone and isn't changed by the other variables you are trying to measure.
What is heat transfer ?
the flow of heat dew to diffrent tempitures
What does a closed circuit mean ?
that means there will be a flow in the circuit.
What is a brief definition,of a simple machine?
A Machine that reduces the amount of effort needed to work.
What type of energy are you using when you open a book?
mechanical
What is a dependent variable?
What you are trying to find out.
What is the definition of a insulator ?
Something that does not transfer heat well.
What does a current need to be complete?
All energy must be flowing thought a complete path.
A simple machine that helps rotate an object?
wheel and axel
What is nuclear energy powered by?
nuclear reactors
What is a scientific variable.
Any factor or trait that can differ amounts or types.
What type of energy is heat transfer.
Thermal energy
what is an an electrical circuit
a path for transmitting electric current