Energy
work (__________)=Force(______________)X Distance(____________) W=Fxd
(joules) (Newtons) (Meters)
If 200 Joules of work is needed to move a car 20 meters. What force was used?
10 N
If a group of workers can apply a force of 2500 Newtons to move a crate 50 meters, what amount of work will they have accomplished?
125,000 J
If 75 Joules of work were necessary to move a 5 Newton crate, how far was the crate moved?
15 m
A glass of milk before drinking it is an example of ________________
Chemical Potential Energy
Energy that is stored in chemical bonds
Chemical Potential Energy
What is Energy?
Energy is the capacity to do work.
Energy cannot change from one type to another.
False
The unit of measurement for work is
Joules
__________ energy depends on mass and velocity of moving object.
Kinetic
Energy that is in motion is known as ______ energy.
Kinetic Energy
Waiting at the top of a slide is an example of ___________ energy
Potential
List the two types of Energy
Potential Kinetic Energy
Energy that is at rest is known as ___________ energy.
Potential energy
the work done in a unit of time
Power
The Unit of measurement for time when calculating Power is in ________.
Seconds
When work is done, a transfer of energy always occurs
True
How much work is done on a pumpkin with a force of 16 newtons when you lift it 1.5 meters?
W-24J
The Unit of measurement for Power is in _____
Watts
A box is pushed 40 meters by a mover. The amount of work done was 2,240 joules. How much force was exerted on the box?
f=56N
Air resistance converts __________________ energy into _____________ energy.
mechanical thermal
The Unit of measurement for distance when calculating work is in
meters
work-
transfer of energy that occurs when a force makes an object move.
To calculate_______you Multiply. To calculate_______you Divide. To calculate_______you Divide.
work force distance
For ______ to be done, something has to move and the __________ must be same direction as _________.
work motion force