Quiz 4 Review

Question 1

Define distance

Answer 1

scalar representing the total length of an object’s path

Question 2

Formula for pythagorean theorem

Answer 2

Question 3

Formula for speed

Answer 3

Question 4

the measure of how quickly an object moves

Answer 4

speed

Question 5

What do the letters in the formula for velocity represent?

Answer 5

v is velocity
Δx is displacement
t is time

Question 6

What do the letters in the formula for speed represent?

Answer 6

v is speed
d is distance
t is time

Question 7

has both magnitude and direction

Answer 7

vector quantity

Question 8

What is the formula for displacement

Answer 8

Question 9

The more recent contributions including quantum mechanics, relativity, solid-state physics, and particle physics

Answer 9

modern physics

Question 10

Define mechanics

Answer 10

branch of physics that addresses the effects of forces on matter

Question 11

can be defined mathematically as the change in position divided by time

Answer 11

velocity

Question 12

the study of motion and forces

Answer 12

dynamics

Question 13

The answer in a vector addition is the ___, a vector showing the combined effect of two or more other vectors.

Answer 13

resultant

Question 14

the total length of the object’s path

Answer 14

distance

Question 15

Define displacement

Answer 15

vector representing an object’s change in position

Question 16

Formula for velocity

Answer 16

Question 17

Contrast speed and velocity

Answer 17

speed is scalar measuring the distance covered by an object per unit time; velocity is vector measuring the displacement of an object per unit time

Question 18

The brances of physics developed before 1900, including mechanics, thermodynamics, optics, acoustics, and electromagnetism

Answer 18

classical physics

Question 19

What term describes a vector showing the combined effect of two or more vectors?

Answer 19

resultant

Question 20

states the square of the hypotenuse is equal to the sum of the squares of the legs

Answer 20

Pythagorean theorem

Question 21

What do the letters in the formula for displacement represent?

Answer 21

Question 22

a vector representing an object’s change in position

Answer 22

displacement

Question 23

the Greek capital letter which is used to represent the change in a value

Answer 23

delta, Δ

Question 24

two different vectors can be combined using what?

Answer 24

vector addition

Question 25

Define mechanics

Answer 25

branch of physics that addresses the effects of forces on matter

Question 26

has only magnitude (size or amount)

Answer 26

scalar quantity

Question 27

What are the two components of a vector quantity?

Answer 27

magnitude and direction

Question 28

Contrast speed and velocity

Answer 28

speed is scalar measuring the distance covered by an object per unit time; velocity is vector measuring the displacement of an object per unit time

Question 29

What term describes a vector showing the combined effect of two or more vectors?

Answer 29

resultant

Question 30

the branch of physics that addresses the effects of forces on matter

Answer 30

mechanics