Basics of Physics

Question 1

Newton’s first law of motion aka law of inertia

Answer 1

An object at rest remains at rest until a force acts upon it

Question 2

What are vectors?

Answer 2

Quantities that have both magnitude and direction

Question 3

Define mass

Answer 3

the amount of matter in an object

Question 4

Newton’s second law of motion (equation)

Answer 4

Force and acceleration of an object will be in the same direction.

Question 5

Newton’s third law of motion

Answer 5

for every action, there is an equal and opposite reaction

Question 6

Define velocity

Answer 6

• speed with direction
• change in direction over a given time
• rate of change in position in a direction

Question 7

What is the term that describes a change in direction with respect to specific origin?

Answer 7

Displacement

Question 8

Define acceleration. The acceleration of an object depends on what two variables?

Answer 8

a) how velocity changes with time
b)
1. net force acting on object
2. mass of object

Question 9

Acceleration can occur with a change in _____, _____, or both.

Answer 9

Speed, direction

Question 10

What is force?

Answer 10

A push or pull

Question 11

What is gravity?

Answer 11

The universal attraction between all objects

Question 12

What is the gravity of earth?

Answer 12

9.8 meters per second squared

Question 13

What is weight?

Answer 13

The gravitational force exerted on an object by another larger object

Question 14

What is the SI unit of mass?

Answer 14

kilogram

Question 15

What is the SI unit of force?

Answer 15

newton

Question 16

Define pressure.

Answer 16

force per unit area or force divided by area

Question 17

How can you increase pressure? (2)

Answer 17

-increasing the applied force
or
-decreasing the area force is applied

Question 18

_____ is calculated using the amount of pressure to support a column of mercury 1mm in height.

Answer 18

mmHG

Question 19

Atmospheric pressure changes are dependent on what factor?

Answer 19

Distance from sea level

Question 20

_____ is a commonly used instrument to measure atmospheric pressure.

Answer 20

Barometer

Question 21

What instrument is used to measure pressure differences?

Answer 21

Manometer

Question 22

_____ gauge relies on expansion and contraction of bellows as pressure changes.

Answer 22

Aneroid

Question 23

_____ is an aneroid style gauge found on gas cylinders, such as, O2, air, or N2O. Common in anesthesia.

Answer 23

Bourdon Gauge

Question 24

What does the Bourdon Gauge measure?

Answer 24

The difference between the pressure exerted by the gas in the cylinder and atmospheric pressure

Question 25

When Bourdon Gauge reads 0 is the tank empty?

Answer 25

No, the pressure in the tank is equal to atmospheric pressure.

Question 26

Is there liquid in aneroid gauge?

Answer 26

No

Question 27

A _____ transducer uses non-electric pressure changes which are transduced into a voltage that is proportional to the pressure change.

Answer 27

piezoelectric

Question 28

_____ is a form non-invasive blood pressure monitoring that relies on the measurement of blood pressure oscillations. What type of transducer is used?

Answer 28

a. Oscillometry | b. Piezoelectric transducer