Question 1

According to Aristotle, what determined the 'proper place' of an object in the universe?

Accepted Answer

The object's nature, based on the four elements: earth, water, air, and fire

Question 2

Galileo's experiments with falling objects demonstrated that, in the absence of air resistance, objects of different weights:

Accepted Answer

Fall at the same rate

Question 3

Which statement best describes inertia as defined by Galileo?

Accepted Answer

Inertia is the property of an object to resist changes in motion

Question 4

A ball rolling on a horizontal plane will eventually come to rest. According to Galileo, what is the primary reason for this?

Accepted Answer

Friction acts on the ball

Question 5

Newton's First Law of Motion states that an object will remain at rest or in uniform motion unless:

Accepted Answer

It is acted upon by a nonzero net force

Question 6

Which of the following is a vector quantity?

Accepted Answer

Force

Question 7

A cart is pulled to the right with a force of 15 N and to the left with a force of 20 N. What is the net force acting on the cart?

Accepted Answer

$$5\ \mathrm{N} to $$the left

Question 8

The equilibrium rule can be expressed mathematically as:

Accepted Answer

$$\sum F = 0$$

Question 9

When you stand on two bathroom scales with your weight evenly distributed, each scale will read:

Accepted Answer

Half your weight

Question 10

A hockey puck slides across frictionless ice at a constant speed in a straight line. Which type of equilibrium is this?

Accepted Answer

Dynamic equilibrium

Question 11

If you push a crate at a steady speed in a straight line and the friction force is $$75\ \mathrm{N}$$, how much force must you apply?

Accepted Answer

Equal to $$75\ \mathrm{N}$$

Question 12

Which of the following is NOT a base unit in the SI system?

Accepted Answer

Gram

Question 13

Convert $$2.5\ \mathrm{kg} to $$grams using the correct conversion factor.

Accepted Answer

$$2500\ \mathrm{g}$$

Question 14

Which prefix represents $$10^{-3} in $$the metric system?

Accepted Answer

Milli-

Question 15

How many significant figures are in the measurement $$0.0008\ \mathrm{ms}$$?

Accepted Answer

One

Question 16

When multiplying $$123 by$$ $$5.35$$, how many significant figures should the answer have?

Accepted Answer

Three

Question 17

Which of the following numbers is considered an exact number and has an infinite number of significant digits?

Accepted Answer

$$2.54\ \mathrm{cm} = 1\ \mathrm{inch}$$

Question 18

A strip of paper measures $$7.3\ \mathrm{cm} 	imes 5.85\ \mathrm{cm}. $$What is the area, rounded to the correct number of significant figures?

Accepted Answer

$$42.7\ \mathrm{cm}^2 ($$rounded to 3 sig figs)

Question 19

Which statement about scientific notation is correct?

Accepted Answer

The significand in scientific notation is the significant digits of the number

Foundations of Motion: Aristotle, Galileo, and Newton

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