Which of the following lab safety guidelines is relevent to this experiment?
Question 1 options:
Use wet paper towels or a fire extinguisher to put out small fires.
Ensure that you have a clean working space to minimize errors.
Wear goggles when heating substances to boiling.
If you spill chemicals on your skin, flush with water and tell an adult.
Question
2 (2.5 points)
Identify the dependent and independent variables for Part 1 of this experiment.
Question 2 options:
Independent - shoe, Dependent - friction
Independent - friction, Dependent - shoe
Independent - shoe, Dependent - weight
Independent - weight, Dependent - shoe
Question 3 (2.5 points)
Which of these had the LARGEST frictional force?
Question 3 options:
The athletic shoe without added mass
The athletic shoe with added mass
The dress/dance shoe without added mass
The dress/dance shoe with added mass
Question 4 (2.5 points)
Which of these had the SMALLEST frictional force?
Question 4 options:
The athletic shoe without added mass
The athletic shoe with added mass
The dress/dance shoe without added mass
The dress/dance shoe with added mass
Question 5 (2.5 points)
Would changing the floor change the amount of friction that the shoes experience?
Question 5 options:
No, friction does not depend on the floor just the shoe.
No, all floors have a fixed amount of friction.
Yes, the rougher the surface, the more friction it has.
Yes, the smoother the surface, the more friction it has.
Question 6 (2.5 points)
Which forces are acting on the shoe as you drag it across the floor?
Question 6 options:
friction and applied
friction, applied, and gravity
friction and gravity
friction, applied, gravity, and normal
Question 7 (2.5 points)
What units are the correct units for measuring force?
Question 7 options:
Newtons
meters
kilograms
Newton meters
Question 8 (2.5 points)
What is the difference between kinetic and static friction?
Question 8 options:
kinetic friction is when the object moves, static is when it is still
kinetic friction is when the object is still, static is when the object is moving
both kinetic and static friction happen only when the object is moving
both kinetic and static friction happen only when the object is still
Question 9 (2.5 points)
Which shoe was able to be raised to a greater angle?
Question 9 options:
The athletic shoe could be lifted to a higher angle.
The dance/dress shoe could be lifted to a higher angle.
Both shoes could be lifted to the exact same angle.
Both shoes slid immediately.
Question 10 (2.5 points)
Why do we repeat the trial to make sure that the shoe slides down the board?
Question 10 options:
To eliminate or minimize human error due to bumping the board.
To eliminate or minimize human error from stacking the board on books.
To make sure we have the best possible measurements.
All of the other answers are correct.
Answers: 2
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Athird point charge q3 is now positioned halfway between q1 and q2. the net force on q2 now has a magnitude of f2,net = 5.861 n and points away from q1 and q3. what is the value (sign and magnitude) of the charge q3?
Answers: 2
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The average atmospheric pressure on earth is approximated as a function of altitude by the relation patm = 101.325 (1 − 0.02256z)5.256, where patm is the atmospheric pressure in kpa, and z is the altitude in km with z = 0 at sea level. determine the approximate atmospheric pressures at atlanta (z = 306 m), denver (z = 1610 m), mexico city (z = 2309 m), and the top of mount everest (z = 8848 m).
Answers: 3
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Suppose you hit your hand against the edge of table. using newton’s third law of motion why does my hand hurt? explain
Answers: 2
Which of the following lab safety guidelines is relevent to this experiment?
Question 1 options:
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