physics whole unit)

Question 1

how do you calculate sig digits without zeros

Answer 1

you count how many numbers the’re are

Question 2

how do you calculate sig digits with zeros in front?

Answer 2

you count after the zeros and they dont count as ones

Question 3

how do you calculate sig digets with zeros after numbers / in between numbers

Answer 3

you would count all the numbers including the zeros

Question 4

what is the formula for velocity

Answer 4

v= d/t

Question 5

what is the formula for speed

Answer 5

s=d/t

Question 6

what is the formula for time

Answer 6

t=d/v

Question 7

how do you find distance

Answer 7

you add all the numbers together.

Question 8

how do you find displacement

Answer 8

you add the numbers together and add negatives according to the compus rules

Question 9

what is displacement

Answer 9

It is the length from the starting point to the ending point and you put the directions

Question 10

what is distance

Answer 10

distance is the whole length

Question 11

what is vector and examples of an vector

Answer 11

a vector is a scale that includes direction, for example 15m north

Question 12

what does scaler mean

Answer 12

a scaler just states the size / amount

Question 13

how do you calculate the average ———

Answer 13

1) determine if you need to swap units
2) find formula / enter numbers into formula
3) after finding the answer check if the sig digets are correct

Question 14

what does uniform mean

Answer 14

it stands for the graph increasing in a straight line

Question 15

what does non uniform mean

Answer 15

it means its not going up at the same pace

Question 16

what does constant velocity on a position time graph look like

Answer 16

horizontal straight uniform increasing line

Question 17

changing pace meaning

Answer 17

the pace is constantly changing

Question 18

how do you find displacement on a graph

Answer 18

by first calculating the area of the square a=bh then the triangle a=bh/2 then adding them

Question 19

what is the slope formula

Answer 19

slope= y2-y
———
x2-x

Question 20

what are the two different graphs

Answer 20

distance time graph (scalar)
position time graph (vector)

Question 21

When there are 2 distances in a acceleration question what formula would you use

Answer 21

You would take away final velocity from initial then divide it by time

Question 22

potential energy formula

Answer 22

Ep=mgh

Question 23

kinetic energy formula

Answer 23

EK=1/2mv^2

Question 24

work formula

Answer 24

W=fd

Question 25

potential energy rearranged so M mass is the subject

Answer 25

M= ep/gh

Question 26

potential energy rearranged so H is the subject

Answer 26

H= ep/gm

Question 27

potential energy rearranged so G is the subject

Answer 27

G= ep/hm

Question 28

kinetic energy so that v is the subject

Answer 28

v=√2EK/m

Question 29

kinetic energy so that m is the subject

Answer 29

m=2EK/v^2

Question 30

what is the formula for force

Answer 30

f= w/d

Question 31

what is the formula for distance

Answer 31

D=W/F

Question 32

what are work, Ep, and Ek all measured in

Answer 32

jouls (j)

Question 33

What is velocity measured in?

Answer 33

m/s

Question 34

what is gravity in potential energy measured in

Answer 34

m/s^2

Question 35

What is mass measured in?

Answer 35

kg

Question 36

What is height measured in?

Answer 36

m meters

Question 37

in mechanical energy ball positions when the ball is at the first and the last position what type of energy is it

Answer 37

potential energy

Question 38

in mechanical energy ball positions when the ball is at the middle/bottom/halfway what type of energy is it

Answer 38

it is full kinetic that transferred over

Question 39

When there are 2 distances in an acceleration question what formula would you use

Answer 39

You would take away final velocity from initial then divide it by time

Question 40

when there is a question asking for distance and there are only distances what do you do

Answer 40

you add them all up

Question 41

what do position time graphs find (vector)

Answer 41

velocity

Question 42

What do distance-time graphs find? (scaler)

Answer 42

speed

Question 43

What do velocity time graphs find?( vector)

Answer 43

acceleration

Question 44

with efficiency questions that have jouls in the question as well mentions ek and ep what do you do

Answer 44

you have to look at the other numbers it gives and to either ep or ek to find the input or output then use efficiency to solve

Question 45

what does increasing acceleration on a velocity-time graph look like

Answer 45

it is a curved line in a smiley face like shape

Question 46

what does acceleration on a velocity-time graph look like

Answer 46

it is in an increasing line that's horizontal

Question 47

in the transfer between kinetic and potential energy where does the energy go

Answer 47

it gets lost to friction

Question 48

what does Magnitude stand for

Answer 48

size or amount

Question 49

what does Interval stand for

Answer 49

the difference between two times

Question 50

Potential energy definition

Answer 50

it stands for energy that is stored

Question 51

what does altitude stand for

Answer 51

the height relative to to sea level or ground level

Question 52

when about to drop something what type of energy does it first have

Answer 52

potential then is transferred to kinetic

Question 53

what does constant velocity on a velocity time graph look like

Answer 53

straight line not increasing or decreasing

Question 54

what does decreasing velocity look like on a position time graph

Answer 54

it is a curved sad face #emo4life

Question 55

when would you use the slope

Answer 55

when needing to find the velocity

Question 56

what does acceleration look like on a distance time graph

Answer 56

a curved line

Question 57

what way do positive and negative slopes go

Answer 57

positive goes in pos direction negative goes in a neg direction

Question 58

what formula do you use when finding displacement

Answer 58

a=bh and a=bh/2