1. Translational Motion

Question 1

what is a vector

Answer 1

physical quantity that has both direction and magnitude

Question 2

what is a scalar

Answer 2

physical quantity that has magnitude but no direction

Question 3

what do you do when adding vectors

Answer 3

1. head of 1st vector placed towards tail of the 2nd
2. arrow drawn from tail of 1st vector to head of 2nd one
3. resulting arrow = vector sum of the 2 vectors

Question 4

what do you do when subtracting vectors

Answer 4

1. place heads of the 2 vectors together and draw an arrow from tail of 1st vector to tail of 2nd vector
2. resulting arrow represents vector diff between the 2 vectors

Question 5

what is distance

Answer 5

how much ground object has covered

Question 6

what is displacement

Answer 6

objects overall change in position

Question 7

is distance and displacement vector/scalar

Answer 7

distance = scalar

displacement = vector (has direction)

Question 8

what is velocity

Answer 8

speed with direction

Question 9

what is the units for velocity

Answer 9

length/time

Question 10

is speed and velocity vector/scalar

Answer 10

speed = scalar

velocity = vector

Question 11

what is the equation for speed

Answer 11

speed = distance/time

Question 12

what is the equation for velocity

Answer 12

velocity = displacement/time

Question 13

what is acceleration

Answer 13

rate of change in velocity

Question 14

is acceleration a vector

Answer 14

yes it has direction and magnitude

Question 15

what are the units of acceleration

Answer 15

m/s^2

Question 16

what is the equation for acceleration

Answer 16

acceleration = rate of change of velocity/time

Question 17

what is uniform accelerated motion

Answer 17

motion that involves constant acceleration

Question 18

what is the linear motion equation for distance (x)

Answer 18

x = x0 + v0t +1/2at^2

Question 19

what is the linear motion equation for velocity (v)

Answer 19

v = v0 + at

Question 20

what is the linear motion equation for velocity squared (v^2)

Answer 20

v^2 = v0^2 + 2ax

Question 21

what are the 2 terms/conditions that allow the use of the linear motion equations

Answer 21

1. must be constant acceleration
2. must be linear motion

Question 22

what is the linear motion equation for average velocity (v avg)

Answer 22

v avg = 1/2(v + v0)