Energized
This is the ability to do work.
What is 'Energy'?
Pg 272, BTD
A bow string being pulled back and a tennis ball compressing when it is hit have this type of energy.
What is 'Elastic energy'?
Pg 278, elastic energy section.
As you pick up a box by standing, you use these to do work.
What are 'legs'?
Pg 289, figure 8.21
This type of machine is made up of two or more simple machines that operate together.
What is a 'Compound machine'?
Pg 301, Simple Machines section, first paragraph
Plants take the solar energy it releases and turns it into this type of energy.
What is 'chemical energy'?
Pg 281, figure 8.10
An object resting on the top shelf of a bookcase at rest contains this kind of energy.
What is 'Potential energy'?
Pg 276, BTD
In lab 8.1, this was the object used to test your hypothesis about elastic energy.
What is 'a rubber band'?
Pg 279, lab 8.1 materials
In physics, work is the transfer of this.
What is 'energy'?
Pg 289, Energy and Work section
A machine can never operate at 100% efficiency because of this.
What is 'Friction'?
Pg 301, Efficiency section, second paragraph
This is the SI unit for power.
What is 'A watt'?
Pg 292, first paragraph.
The two types or potential energy are gravitational and _______.
What is 'Elastic energy'?
Pg 276, 4h paragraph
This type of energy is associated with moving charged particles.
What is 'Electrical energy'?
Pg 283, Electrical energy section.
This is the formula to calculate work.
What is 'Work = Force x Direction'?
Pg 290, blue box defining this formula
This type of machine consists of a bar that rotates around a fixed point called a fulcrum.
What is a 'Lever'?
Pg 303, infographic 8.1
This is the force a person exerts on a machine.
What is 'Input force'?
Pg 297, BTD
When billiard balls are hit into each other, this is transferred from one ball into another causing it to move.
What is 'kinetic energy'?
Pg 275, figure 8.4
________ fission is a process that releases energy by splitting atomic nuclei apart.
What is 'Nuclear energy'?
Pg 285, nuclear energy section
Work is maximized when the direction of force and the direction or motion are this.
What is 'the same (direction)'?
Pg 289, figure 8.22
This is the formula for Ideal Mechanical Advantage, or IMA, and is used by scientists to calculate a machine's mechanical advantage in the absence of friction.
What is 'Input Distance / Output Distance'?
Pg 299, Equation 8.6
A horse's ability to lift about 33,000 pounds 1 foot of distance in 1 minute is known as this and was calculated to be equal to 746 watts of power.
What is 'A horse power'?
Pg 293, think about this section
The formula 'KE = 1/2 x m x v2' represents this.
What is 'Kinetic Energy'?
Pg 273, equation in blue text.
This is the sum of an object's potential and kinetic energy.
What is 'Mechanical energy'?
Pg 281, mechanical energy section
This is the amount of work done each second.
What is 'Power'?
Pg 291, BTD
Actual Mechanical Advantage, or AMA, is calculated using this formula.
What is 'Output Force / Input Force'?
Pg 298, Equation 8.5
In lab 8.1, the reason there were 5 trials for each length the rubber band was pulled back was to reduce this.
What is 'experimental error'?
Pg 280, Last paragraph