Kinematics introduction

Kinematics tour

Let’s start moving on!

distance VS displacement

• A tram leaves the depot, travels along its route and returns back to the depot.

• The tram has covered a total of 80km but its displacement is 0km since it ends up where it started.

Multiple Choice

Lucy travels 75 m in 3 s. What is her speed over the interval?

• 225 m/s

• 25 m/s

• 0.04 m/s

Multiple Choice

What is the person doing from 5 seconds to 10 seconds?

• Walking 
• Running
• Standing Still 
• Walking Fast

Multiple Choice

What two measurements are necessary for calculating speed?

• Mass and time
• Temperature and mass
• Mass and distance
• Distance and time

Multiple Choice

What is this graph representing?

• Constant Speed
• Acceleration (speeding up)
• Deceleration (slowing down)
• No motion

Multiple Choice

The speedometer on your car tells you

• average velocity
• instantaneous velocity
• average speed
• instantaneous speed

Multiple Choice

Velocity is both ____ and _____. 

• speed , direction 
• direction, mass
• volume, density 
• direction, magnitude 

Multiple Choice

What is velocity?

• the quickness of an object
• the location of an object
• acceleration
• speed in a specific direction

Multiple Choice

What is speed?

• how far you go
• how much distance is covered over a period of time
• how fast you accelerate
• the change in the location of a object

Multiple Choice

What is the formula to calculate speed?

• $v=\frac{\Delta t}{\Delta s}$
  

• $v=\frac{\Delta s}{\Delta t}$
  

• $v=\Delta s\times\Delta t$
  

• $v=\Delta t\times\Delta s$
  

Multiple Select

Which graph(s) represents a constant velocity?

• a and c

• b and c

• c

• a and b

Multiple Choice

What is the velocity of the object between 4 and 5 seconds?

• 0 m/s

• 5 m/s

• 1 m/s

• 2 m/s

Multiple Choice

What is the average velocity of the object between 10 and 15 seconds?

• 6 m/s

• 1.5 m/s

• -4 m/s

• 0 m/s

Multiple Choice

What is the average velocity of the object between 0 and 10 seconds?

• 6.0 m/s

• 1.5 m/s

• -4 m/s

• 0 m/s

Multiple Choice

A car is traveling south for 250 meters over the course of 100 seconds. What was the car's average velocity?

• 0.4 m/s south

• 0.4 m/s

• 2.5 m/s

• 2.5 m/s south

Multiple Choice

Kinematics is the branch of Mechanics that

• describe a motion without considering its causes

• describe a motion considering its causes

• describe a motion

Poll

Is the distance a quantity affected by direction?

• Yes, it is.

• No, it is not.

• Maybe it is.

• To be honest, I do not know!

Multiple Choice

Speed is a __________ quantity and velocity is a __________ quantity.

• scalar, vector

• vector, scalar

Multiple Choice

A _________ quantity is completely described by magnitude alone. A _________ quantity is
completely described by a magnitude with a direction.

• vector, scalar
• scalar, vector

Multiple Choice

You run from your house to a friend's house that is 3 km away. You then walk home. The distance you traveled is 6 km. What is your displacement? 

• 6  km
• 0 km

Multiple Choice

An object can be moving for 10 seconds and still have zero displacement.

• True

• False