Energy
what is the ability to do work or cause change?
Energy
Motion
is any push or pull
Force
is that rate at which work is done
power
synonym for maximum
Most, largest
Where does a car get its energy from
Fuel such as gasoline or diesel
What is the formula for speed
Distance/time
What is the unit to measure force
Newtons
What is the SI unit of power
Watts
What type of energy is stored in food?
Chemical energy
What law states that energy cannot be created or destroyed?
Law of conservation of energy
A car travels 120 meters in 20 seconds. What is its speed?
6miles
What force pulls objects towards earth
Gravity
A machine does 100 joules of work in 5 seconds. What is its power?
20watts
A car travels 100 meters in 20 seconds. What is its speed?
5 miles
things that have energy
Everything that has matter
What is the unit commonly used to measure speed?
Miles meters per second
What happens when unbalanced forces acts on an object?
The objects motion changes
Formula for calculating power
Power=force*distance/time
person pushes a box with 10 N of force for 5 meters. How much work is done?
50 joules
How are energy and motion related
Energy and motion are directly connected because energy is the "fuel" that makes things move
What is the difference between a moving object and an object at rest?
A moving object changes position, while an object at rest does not.
What are two factors that affect how much work is done in any given action?
Force and distance
Formula for calculating power
Power=work/time
A machine does 200 joules of work in 10 seconds. What is its power?
20 watts