CH.1 Kinematics

Question 1

What is the unit and symbol for distance?

Answer 1

Unit: Meter (m), Symbol: d

Question 2

What is the unit and symbol for Time?

Answer 2

Unit: seconds (s), Symbol: t

Question 3

Reference Frame

Answer 3

Lets us define where an object is located, relative to other object

Question 4

The X-axis represents

Answer 4

One Dimension

Question 5

The X and Y axis represent

Answer 5

two dimensions

Question 6

Displacement

Answer 6

Describes how far you are from where you started, regardless of how you got there

Question 7

Delta (triangle)

Answer 7

represents change

Question 8

What is the equation used to calculate Displacement?

Answer 8

deltax= Xf-Xo

Question 9

The measure of distance must always be _, while the measure of displacement can be _ or _

Answer 9

Distance= always positive, Displacement= positive/negative

Question 10

Scalar

Answer 10

a quantity that has only a magnitude (number)

Question 11

Vector

Answer 11

a quantity that has both a magnitude and direction

Question 12

Time, Distance, and Speed are examples of

Answer 12

Scalar

Question 13

Displacement is an example of

Answer 13

a vector

Question 14

speed

Answer 14

the distance traveled divided by the time it took to travel that distance

Question 15

What is the equation to find speed?

Answer 15

speed= distance/time

Question 16

what are the units associated with speed?

Answer 16

meters/seconds

Question 17

what is the average speed formula?

Answer 17

Same as speed, just with bar over top of the “s”

Question 18

Velocity

Answer 18

a vector (magnitude + direction), not the same as speed

Question 19

What is the equation for velocity?

Answer 19

V= deltax/ deltat or Xf-Xi/Tf-Ti or displacement/time

Question 20

delta (triangle) means

Answer 20

change

Question 21

acceleration

Answer 21

the rate of change of velocity

Question 22

Velocity is the rate of change of

Answer 22

displacement

Question 23

What is the equation for acceleration?

Answer 23

A= deltav/ deltat

Question 24

Acceleration is a _ (vector/scalar)

Answer 24

Vector

Question 25

What are the units for acceleration?

Answer 25

m/s^2

Question 26

Explain Kinematics Equation 1: Vx= Vxo + Axt

Answer 26

Vx= final velocity, Vxo= initial velocity, Ax= acceleration, T= time

Question 27

What is free fall?

Answer 27

when the only force acting on an object is the force of gravity

Question 28

What is acceleration due to gravity?

Answer 28

when an unsupported object falls towards Earth, always has the same acceleration

Question 29

Acceleration due to gravity=

Answer 29

-9.8 m/s^2

Question 30

Velocity changes but _ will always stay the same

Answer 30

acceleration

Question 31

Explain the path of a ball thrown in the air

Answer 31

starts with an initial velocity of 0, slows down, stops momentarily at the top, speeds up, and returns with a velocity of 0