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.