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Physics Semester Review
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What is the weight/ resistance of the crate?
37.5N
What is the IMA of the lever shown?
1.67
What is the mechanical advantage of the pulley?
8
What is the reading on the instrument shown?
18.60 mm
How is ideal MA different from actual MA?
ideal does not account for friction
Which type of simple machine changes the direction of the force applied?
pulley
What is the reading on the instrument shown?
2.85 cm
What is the reading on the Vernier caliper?
2.08 cm
What is the reading on the micrometer screw gauge?
7.74 mm
What is the volume on the Jar?
450 mL
What is power?
rate of doing work or work / time
How much work is done pushing a stalled car for 5 hours using 10,000 N of force?
OJ
A type of wave in which the medium and the energy are parallel to each other.
longitudinal
A type of wave in which the energy and the medium are perpendicular to each other.
transverse
A measure of how quickly you change in speed is called__________.
acceleration
How is this called: v= f x w ?
wave equation
What is the human hearing range?
20 - 20 k Hz
True or False: Infrasonic sound waves are ABOVE 20 kHz.
False
Wht term describes the differences in notes of sound, Victor from Jayvan?
timbre
How does increasing frequency affect sound?
increases pitch
What type of medium allows all light to pass through?
transparent
What are the colors making up a spectrum of white light?
ROYGBIV
Which phenomenon is responsible for why black is not a color?
absorption
What phenomenon causes the straw to look bent?
refraction
Which type of medium slows down light waves the most?
solid, glass
What are the types of shadows?
umbra and pen-umbra
Why are shadows created?
light travels in a straight line
What type of wave is light?
electromagnetic
What type of wave is sound?
mechanical
Which type of wave travels without a medium?
electromagnetic
Which type of wave requires a medium?
mechanical
You estimate that 15 M&Ms are in the pack but only 13 were actually present. What is the percentage error?
15-13 =2 / 13 =0.1538461 x 100% = 15.38%
Alka seltzer has a dissolving time of 39.5 seconds. Upon trying, your time is 40.7 seconds. What is the percentage error?
40.7-39.5 = 1.2 / 39.5 = 0.0303797 x 100 = 3.04%
What term describes the values of each graduation on an instrument?
sensitivity
What term describes the minimum and maximum value an instrument can measure?
range
What is the unit for measuring mass?
kilograms
What fundamental quantity is measured in moles?
amount of substance
Obtaining consistent readings, close to each other
precise
Obtaining the desired/true value
accurate
type of measured quantities obtained from using instruments/ equipment
fundamental quantities
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