Kinematics Test Review

Equations

100

What does the speed triangle look like...

     d

s        t

200

The equation for velocity is...

velocity=displacement/time

300

What do the letters stand for on the speed triangle?

d= distance 

v= speed

t= time 

400

When solving for distance, what would be the set up using the speed triangle?

distance = speed x time

d=s x t 

500

The theorem used for finding displacement is...

the Pythagorean theorem 

a² + b² = c²

Problem Solving

100

The speed of an object moving 5.5 meters in 1.25 seconds.

What is 4.4 m/s?

200

A biker rides west for 50 miles from his starting position, then turns and bikes back east 80 miles. His displacement is.... 

What is 30 miles east?

300

A person walks 8 km east during the first day, and 5 km west the next day. What is their displacement?

3 km east 

400

How far does a turtle walk if it is travelling at 1cm/s for 30 seconds?

What is 30cm? 

500

How long does it take for a car whose velocity is 75mi/h North and displacement is 200 miles North?

What is 2.67 mi? 

Units

100

What are the units for displacement?

meters

200

What are the units for time?

seconds (hours will be accepted as well)

300

The abbreviation for kilometers per hour is...

km/h

400

What are the units for velocity?

m/s

500

What are all of the possible directions for vector measurements? 

North, South, East, West, Northwest, Northeast, Southwest, Southeast 

Definitions

100

The definition of speed is...

What is distance over time?

distance/time

200

The speed of something in a particular direction.

What is velocity?

300

Physics is the study of ________, _________ and ________. 

What is matter, motion, and energy? 

400

The difference between an objects starting position and ending position.

What is displacement?

500

What is the difference between speed and velocity.

What is direction?

Speed is scalar 

Velocity is vector 

Acceleration

100

The definition of acceleration....

What is the change in velocity over time?

200

The formula for acceleration is..

acceleration = change in velocity / change in time 

a = V_f - V₀ / t 

300

V₀  is the symbol for what?

Initial velocity

400

You are sitting in the park when a goose charges straight at you. You go from sitting to running 6m/s in 2.2 seconds. What is your acceleration?

a=(6-0)/2.2

a=2.72m/s²

500

A car is driving 30mi/hr when a ball rolls into the street. The car puts on the brakes for 7 seconds and ends up going 20mi/hr. What is the acceleration?

a = (20-30)/7 

a = -1.43 mi/hr/s