Speed and Velocity

Multiple Choice

What is the definition of motion as described in the image?

• Motion is a state of rest

• Motion is always occurring

• Motion is only for large objects

• Motion is a type of energy

Multiple Choice

Marcy is driving on a road parallel to train tracks at a constant velocity. At the same time, a train is accelerating in the opposite direction at a rate of 5 . Marcy hypothesizes that if her car was not moving, the train would appear to accelerate at a slower rate.

Upon which scientific principle has Marcy based her hypothesis?

• Objects in motion have a tendency to maintain their motion.

• For every action, there is an equal and opposite reaction.

• Energy tends to become more disordered with time.

• All motion is relative to a frame of reference.

Multiple Choice

What is the Earth's surface commonly used as for determining position and motion?

• A reference point

• A measurement tool

• A motion detector

• A navigation system

Multiple Choice

What is the formula for calculating speed?

• Speed = distance + time

• Speed = distance - time

• Speed = distance / time

• Speed = time / distance

Fill in the Blanks

Multiple Choice

How is velocity different than speed?

• Speed opposes velocity
• Velocity is speed with a direction
• None of the answers are correct

Multiple Choice

What is the difference between speed and velocity as illustrated in the image?

• Speed is a scalar quantity

• Velocity is a vector quantity

• Both speed and velocity are the same

• Speed depends on direction

Multiple Choice

Which is an example of VELOCITY?

• A dog running at 3 m/s
• A deer sprinting at 4 m/s
• A migrating bird headed south for the winter at 3 m/s
• A person not moving at all

Multiple Choice

What happens to your velocity if you walk in the opposite direction while riding a bus?

• You maintain the same velocity as the bus

• You have a velocity of 15m/s east

• You have a velocity of 15m/s west

• You stop moving

Multiple Choice

What is the resultant velocity when adding the velocities of the person and the bus?

• 15 m/s east

• 16 m/s east

• 1 m/s east

• 14 m/s east

Multiple Choice

What is the resultant velocity when a person moves at 1m/s west and a bus moves at 15m/s east?

• 14m/s east

• 16m/s east

• 14m/s west

• 15m/s west

Multiple Choice

Describe the motion in the graph:

• Constant Speed (positive slope)

• Stopped (at rest)

• Acceleration (increasing speed)

• Return Home (negative slope)

Multiple Choice

What is the formula to calculate the slope of a line?

• Rise + Run

• Rise - Run

• Rise / Run

• Run / Rise

Multiple Choice

Determine the scenario that matches with the graph shown.

• A ball being thrown upward and then being caught.

• A child swinging on a swing, going higher and higher before slowing down and coming to a stop.

• A dog walks to his bowl, stops to drink water then goes back to his bed.

Multiple Choice

What does a curved line upward indicate on a distance vs. time graph?

• Constant speed

• Deceleration

• Acceleration

• No movement

Multiple Choice

Calculate the average speed (in meter/sec) if a cheetah runs 180 meters in 10 seconds.

• 198 m/sec

• 170 m/sec

• 12 m/sec

• 18 m/sec

Poll

How confident do you feel about this topic now?

• Very confident
• Somewhat confident
• Not confident