Physics Kinematics

Question 1

Vector properties

Answer 1

Magnitude and direction

Question 2

Scalar properties

Answer 2

Magnitude only

Question 3

X-coordinate value of a vector

Answer 3

x = v (cos(theta))

Question 4

Y-coordinate value of a vector

Answer 4

y = v (sin(theta))

Question 5

How to add two vectors:

Answer 5

Place the tail of one at the head of the other and draw a new vector from the new head to new tail

Question 6

Displacement

Answer 6

Vector quantity, x final - x initial

Question 7

Velocity

Answer 7

Change in displacement over time

Question 8

Acceleration

Answer 8

Change in velocity over time

Question 9

Acceleration units

Answer 9

m/s^2

Question 10

Velocity units

Answer 10

m/s

Question 11

Deceleration

Answer 11

Acceleration in the opposite direction of velocity (does not necessarily mean slowing down)

Question 12

What the slope of a displacement vs. time graph represents

Answer 12

Velocity

Question 13

What does a horizontal line mean on a displacement vs. time graph

Answer 13

Not moving (V = 0)

Question 14

What does a negative slope mean on a displacement vs. time graph

Answer 14

Moving backwards

Question 15

What the slope of a velocity vs. time graph represents

Answer 15

Acceleration

Question 16

Displacement equation (basic)

Answer 16

d = Vavg * t

Question 17

Displacement equation (advanced)

Answer 17

d = ((Vi + Vf) / 2) * t

Question 18

Acceleration equation (basic)

Answer 18

a = (Vf - Vi) / t

Question 19

Equation for Vf

Answer 19

Vf = Vi + at

Question 20

Kinematics Equation when missing Vf

Answer 20

d = Vi*t + 1/2at^2

Question 21

Kinematics Equation when missing time

Answer 21

Vf^2 = Vi^2 + 2ad

Question 22

Kinematics Equation for free fall

Answer 22

y = 1/2gt^2

Question 23

Free fall equation for Vf

Answer 23

Vf^2 = 2gy

Question 24

Steps for projectile motion questions

Answer 24

1. Find Viy
2. Use Viy to find time in the air
3. Double answer from 2, since it only represents first half of arc (to peak when Vy = 0)
4. Calculate Vix
5. Use d = vt to calculate distance in horizontal direction

Question 25

Kinematics Equation when missing displacement

Answer 25

Vf = Vi + at

Question 26

Kinematics Equation when missing acceleration

Answer 26

d = Vavg * t