Definitions
Work is the transfer of this.
What is energy?
The SI unit for work.
What is Joules?
Chris Pine pushes the star ship Enterprise 2 meters, using a constant force of 5N. Chris does this much work on the Enterprise.
What is 10 Joules?
Steve does 10 Joules of work to lift a large rock. He works lifting the rock for 5 seconds. He uses this much power on the rock.
What is 2 Watts?
Work is measured in this.
What are Newtons?
1 Newton * meter
What is a Joule?
In science, work is only done when a force produces this.
What is motion?
Mr. Holecek applies a constant force of 50 N to push a desk 8 m across a room. He does this much work.
What is 400 Joules?
Max does 75 J of work in 5 seconds to push a computer terminal off a cliff. He uses this much power on the terminal. (This is before it falls and smashes to bits).
What is 15 Watts?
Power is measured in this.
What are Watts?
The rate at which work is done.
What is power?
The equation for work
What is W=Fd or Work = force X distance
Leann applies a constant force of 2 Newtons to book on her desk. She moves the book .5 meters. Leann does this much work.
What is 1 Joule?
A student pushes her car across the parking lot using 40 Watts of power in 90 seconds. The student does this much work.
What is 3600 Joules?
Of power or work, the one that involves the rate.
What is power?
1 Joule/second
What is a Watt?
What is P = w/t or Power = work over time?
A panda does 25 Joules worth of work at a constant force of 5 N. in order to move a bamboo shoot. The shoot moved this far.
What is 5 meters?
Simon drags a suitcase across the floor using 81 Watts of power to do 9 Joules of work. He works for this long.
What is 9 seconds?
The work required to lift an object is equal to the object's________________ times the distance it is lifted.
What is weight?
1kg*m/s2
What is a Newton?
When an object moves at an angle, only this does work.
What is the part of the force that acts in the direction of the movement?
An elf does 100 J of work lifting a pumpkin 3 feet off the ground. The elf applies this much force.
What is 33.3 Newtons?
If a crane uses 30000 Joules to lift a steel beam for 10 minutes, it uses this much power.
What is 50 Watts
You push on an object for 3 seconds. During those 3 seconds, the object moves 0.65 m. After you stop pushing the object moves another 0.20 m. You should use this distance to calculate work.
What is 0.65 m?