Kinematics

Kinematics

Objectives

• Define Kinematics.

• Solve problems involving Kinematics

• Interpret a motion graph 

  
  

Multiple Choice

It is a scalar quantity that has magnitude between two points.

• position

• velocity

• distance

• displacement

Multiple Choice

It is a vector quantity that measures distance over a period of time.

• speed

• velocity

• motion

• acceleration

Multiple Choice

Siri walks in a forest 6m for 30 minutes. What is Siri’s velocity?

• 6. 2 x 10² m/s

• 3.1 x10³ m/s

• 3.33 X10 ^-3 m /s

• 6.2 x10^-2 m/s

Multiple Choice

Which of the following is NOT an example of a vector quantity?

• 30 m/s N

• 4N west

• 4 m at 35

• 35 min

Open Ended

What is motion?

Open Ended

What is kinematics?

Open Ended

Will you give some physical quantities that describes kinematics.

distance and displacement

both measures the length of travel but for displacement it is important to determine the initial and final position

speed and velocity

both measures how fast a moving was but for velocity it indicates the direction of a moving object

average velocity

total displacement covered by an object over the time travel.

average speed vs average velocity

instantaneous velocity

velocity in any instant time.

acceleration

rate of change of velocity 

Multiple Choice

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

• True
• False

Multiple Choice

At 60 seconds, how far had this object traveled?

• 0 m

• 10 m

• 20 m

• 40 m

Multiple Choice

The speedometer on your car tells you

• average velocity

• instantaneous velocity

• average speed

• instantaneous speed

Multiple Choice

An object is NOT accelerating if it is moving

• in a circle
• at constant velocity 
• at increasing speed
• only as influenced by gravity

Multiple Choice

The fastest trains are magnetically levitated above the rails to avoid friction (and are therefore called

MagLev trains...cool, huh?). The fastest trains travel about 250 km in a half an hour. What is their

average speed in km/hour?

• 250 km/hr

• 500 km/hr

• 125 km/hr

Multiple Choice

A car slows down from +32 m/s to +8 m/s in 4 s. The acceleration is

• 6 m/s/s opposite the motion

• 2m/s/s in the direction of motion

• 8 m/s/s opposite the motion

Multiple Choice

An airplane lands on a runway with a velocity of 150 m/s. How far will it travel until it stops if its rate of deceleration is constant at -3 m/s²?

• 525 m

• 3750 m

• 6235 m

• 9813 m

Multiple Choice

A ball is thrown downward from the top of a roof with a speed of 25 m/s. After 2 s, its velocity will be:

• 19.6 m/s

• -5.4 m/s

• -44.6 m/s

• 44.6 m/s

Open Ended

interpret the graph shown

Open Ended

what does this motion graph indicates?

Open Ended

interpret the motion graph from O to F position.

Open Ended

interpret the motion graph shown