Kinematics Review

Vocab

100

The vector form of distance.

What is displacement

200

A object only moving under the influence of the earth's gravity is in ____. 

What is free fall

300

Definition of acceleration

What is change in velocity over time

400

Name three vectors

What is displacement, velocity, acceleration, force, momentum, etc

500

Definition of constant velocity

What is same distance travelled every second, equal change in position over time 

Identify

100

A car in front of the school goes from rest to 22 m/s in 4.0 seconds. Identify the three known variables

V_i=0  V_f=22  t=4 

200

A race car drives at 200 mph for 4 seconds. Identify the equation you would use to solve for distance. 

s=d/t

300

An airplane touches down at a speed of 60.0 m/s, and decelerates to rest at a uniform rate of 2.75 m/s2. Identify the three known variables.

v_i= 60  a=-2.75  v_f= 0

400

A cannon is on top of a 50 m tall wall and shoots a cannonball horizontally at a speed of 10 m/s. Identify the four known variables.

x_iy=50  v_iy=0  a=-9.8

v_x=10

500

A bullet starting from rest accelerates at 4000 m/s2 to a velocity of 390 m/s. Identify the equation you would use to solve for time.

a=(v_f-v_i)/t

Kinematics

100

Motion in the x-direction and motion in the y-direction are ______. 

What is independent/separate

200

Sketch the position vs time graph of an object that is accelerating

An exponential graph

300

A hiker goes 5 miles North, 2 miles South, 1 mile North, and then 6 miles South. What was the hiker's total displacement, magnitude and direction?

What is 2 miles South

400

A car drives 4 miles North and then 4 miles East. What is the magnitude of the displacement? Hint: you can't just add.

What is 5.66 miles

500

A car in front of the school goes from rest to 30 m/s in 6.0 seconds. What is its acceleration?

5 m/s²

Projectile Motion

100

Angle to launch something the farthest

What is 45 degrees

200

Two balls are thrown from a height of 10 m. The blue ball is thrown at a horizontal speed of 10 m/s while the red ball is thrown at a horizontal speed of 20 m/s. If both balls are thrown at the same time, which reaches the ground first?

The hit at the same time!

300

A cannon is on top of a 100 meter tall hill and launches a cannon ball with a horizontal speed of 8 m/s. What is the initial vertical and horizontal velocity of the cannonball?

v_iy = 0 m/s

v_ix = 8 m/s

400

How long does it take a projectile to fall 50 meters on earth

3.2 s

500

Sketch the position vs time graph of a projectile's horizontal velocity.

Should be a straight diagonal line (linear graph)