Chapters 1-7

Question 1

The straight line distance between two points is known as …..

Answer 1

Displacement

Question 2

What particle or particles of the atom’s nucleus determine the atomic number?

Answer 2

Number of protons

Question 3

Displacement divided by time equals …..

Answer 3

Average velocity

Question 4

When two or more vectors act simultaneously upon the same point, they are called ….. vectors.

Answer 4

Concurrent vectors

Question 5

The state in which matter exists depends upon the object’s …..

Answer 5

Temperature

- the energy of the individual particles

Question 6

What is defined as the pathway taken by a projectile?

Answer 6

Trajectory

Question 7

What represents the maximum deviation from the mean, or the precision of a measuring instrument?

Answer 7

Tolerance

Question 8

What type of vectors act at angles that are not equal to 0 degrees or multiples of 90 degrees?

Answer 8

Skewed vectors

Question 9

A hydraulic device functions based on …..

Answer 9

Confined liquid to multiply force

Question 10

Which of the following does not contribute to the rise of water in a small tube?

Answer 10

Adhesion, cohesion, and atmospheric pressure do contribute to the rise of water in a tube.

Question 11

Any substance capable of flowing is called a(n)…..

Answer 11

Fluid

Question 12

The attractive force between like molecules is called …..

Answer 12

Cohesion

Question 13

The value of “g” in SI units, to three significant figures is ….. m/s^2.

Answer 13

9.80 m/s^2

Question 14

Any quantity that has both magnitude and direction is called a(n)….,

Answer 14

Vector

Question 15

The fact that lateral pressure decreases as a fluid’s velocity increases is called ….. principle.

Answer 15

Bernoulli’s principle

Question 16

If an object is hurled upward in a vacuum, the total time it takes the object to return to its original level if the time of ascent is 4.0 is ….. s.

Answer 16

Total time back to start = 8.0 seconds

Question 17

A simple picture that summarizes the various vectors acting on one point is called a(n)…..

Answer 17

Vector diagram

Question 18

True/False

In a vacuum, a feather and a coin will fall at THE SAME rate of acceleration.

Answer 18

True

Question 19

The shape of a container holding a liquid DOES affect the pressure on the bottom.

Answer 19

Does not

Question 20

DUCTILITY is the ability of a metal to be drawn into a wire.

Answer 20

True

Question 21

The velocity of a rock at the maximum height it attains after being hurled upward from the ground with an initial velocity of 34ft/s is O FT/S.

Answer 21

True

Question 22

A projectile’s rate of fall is DEPENDENT UPON its horizontal motion.

Answer 22

Not dependent upon

Question 23

A MANOMETER is a laboratory device which is used to measure the pressure of a gas sample.

Answer 23

True

Question 24

The units of acceleration in the SI system are M/S.

Answer 24

m/s^2

Question 25

DYNAMICS is the study of motion without regard to force, the cause of that motion.

Answer 25

Kinematics

Question 26

The mathematical shape given to the pathway of a projectile is a HYPERBOLA.

Answer 26

Parabola

Question 27

The Kelvin scale is an example of an ABSOLUTE scale.

Answer 27

True

Question 28

Equations: Determines the displacement of a falling object if its initial velocity and time of descent are known.

Answer 28

Formula on the back of my note card

Question 29

Equation Pythagorean theorem

Answer 29

a^2 + b^2 = c^2

Question 30

Match each fundamental quantity with the correct SI unit ``` Mass Temperature Amount of substance Length Time ```

Answer 30

``` Mass - kilogram Temperature - kelvin Amount of substance- mole Length- meter Time- second ```

Question 31

Match each SI prefix with the correct power of ten ``` milli- nano- micro- kilo- mega- ```

Answer 31

``` Milli- 10^-3 Nano- 10^-9 Micro- 10^-6 Kilo- 10^3 Mega-10^6 ```

Question 32

Short answer What two qualities must be stated in order to specify a velocity?

Answer 32

To specify the velocity of an object you have to know the speed and single stated direction of the object.

Question 33

Contrast rectilinear motion and curvilinear motion.

Answer 33

Rectilinear motion is motion in a straight line; whereas curvilinear motion is motion that follows a curving line.

Question 34

Define mass and weight, and describe what effects Gravity has on each.

Answer 34

Mass represents how much inertia an object has, or how much force is required to change the object's state of motion. Mass is not affected by changes in gravity or location because it is an intrinsic property of matter. Weight represents the amount of force the earth's gravity exerts on an object's mass. Weight is affected by gravity because the closer you are to the center of the earth, the stronger the gravitational pull on an object is; and likewise, the farther away an object is from earth, the weaker and less pull earth's gravity has on that object.