Advanced Physics (1st Qtr)

Question 1

quantity with only magnitude

Answer 1

scalar

Question 2

quantity with both magnitude and direction

Answer 2

vector

Question 3

trigonometric function in finding the x component

Answer 3

cosine

Question 4

trigonometric function in finding the y component

Answer 4

sine

Question 5

angle with respect to positive x axis

Answer 5

θ

Question 6

unit vector equivalent to x axis

Answer 6

i hat

Question 7

unit vector equivalent to y axis

Answer 7

j hat

Question 8

unit vector equivalent to z axis

Answer 8

k hat

Question 9

symbol for scalar products

Answer 9

dot

Question 10

symbol for vector products

Answer 10

cross

Question 11

other name for scalar product

Answer 11

dot product

Question 12

other name for vector product

Answer 12

cross product

Question 13

vector with magnitude equal to one (1)

Answer 13

unit vector

Question 14

motion of an object or particle moving along a circle or a circular path or arc with a constant speed

Answer 14

uniform circular motion

Question 15

force that keeps an object moving in a circle

Answer 15

centripetal force

Question 16

linear speed of any object moving along a circular path

Answer 16

tangential velocity

Question 17

F = ma

what is defined by m

Answer 17

mass

Question 18

F = ma

what is defined by a

Answer 18

acceleration

Question 19

a = v^2/r

what is defined by v

Answer 19

velocity

Question 20

a = v^2/r

what is defined by r

Answer 20

radius

Question 21

acceleration of an object or particle moving along a circle or a circular path or arc with a constant speed

Answer 21

centripetal acceleration

Question 22

point where all the mass of an object is concentrated

Answer 22

center of mass

Question 23

point where all the weight of an object is concentrated

Answer 23

center of gravity

Question 24

value of acceleration due to gravity

Answer 24

9.8 m/s^2

Question 25

True or false. Center of mass is always at an objects geometric center.

Answer 25

false

Question 26

True or false. Center of mass can be outside the object.

Answer 26

true

Question 27

state of an object if its body is not moving from any reference point

Answer 27

static equilibrium

Question 28

types of static equilibrium

Answer 28

stable and unstable

Question 29

motion of an object turning about an axis

Answer 29

rotational motion

Question 30

rotates with all its parts locked together, without any change in its shape

Answer 30

rigid body

Question 31

angle relative to a fixed direction

Answer 31

angular position

Question 32

fixed direction in rotational motion

Answer 32

zero angular position

Question 33

changing of angular position of the reference line

Answer 33

angular displacement

Question 34

other name for zero angular position

Answer 34

initial position

Question 35

angular displacement during a time interval

Answer 35

average angular velocity

Question 36

other term for average angular velocity

Answer 36

angular speed

Question 37

limit of the ratio as time approaches zero

Answer 37

instantaneous angular velocity

Question 38

limit of the angular acceleration as time approaches zero

Answer 38

instantaneous angular velocity

Question 39

change in angular velocity that occurs during a time interval

Answer 39

average angular acceleration

Question 40

turning or twisting action on a body about a rotation axis due to force

Answer 40

torque

Question 41

constant in torque

Answer 41

Φ (phi)

Question 42

T = rFsinΦ what is defined by r

Answer 42

lever arm

Question 43

T = rFsinΦ what is defined by F

Answer 43

force

Question 44

sum of individual torques when several torques act on a body

Answer 44

net torque

Question 45

other term for net torque

Answer 45

resultant torque

Question 46

change in the speed of sound as temperature increases or decreases

Answer 46

0.6 m/s

Question 47

tendency of matter to change its shape, area, density, and volume in response to a change in temperature

Answer 47

thermal expansion

Question 48

change in length measurements of an object due to thermal expansion

Answer 48

linear thermal expansion

Question 49

expansion or contraction occurring in all directions

Answer 49

volume thermal expansion

Question 50

unit for change in temperature

Answer 50

C°

Question 51

unit for current / specific temperature

Answer 51

°C

Question 52

coefficient of linear thermal expansion per degree celsius

Answer 52

α (alpha)

Question 53

coefficient of volume thermal expansion per degree celsius

Answer 53

β (beta)

Question 54

amount of heat required to raise the temperature of 1 kg of a substance to 1 K

Answer 54

specific heat capacity

Question 55

amount of heat needed to cause a phase change

Answer 55

latent heat

Question 56

phase change between solid and liquid

Answer 56

fusion

Question 57

phase change between liquid and gas

Answer 57

vaporization

Question 58

True or false. an object's temperature stays constant throughout a phase change

Answer 58

true

Question 59

sequence of phases where speed of sound decreases (starting from fastest to slowest medium)

Answer 59

solids, liquids, gas

Question 60

equation used in finding the resultant vector

Answer 60

pythagorean equation