Kinematics Review

Multiple Choice

Which of the following describes distance and displacement correctly?

• The blue arrow shows distance and the orange arrows show displacement
• The blue arrow shows displacement and the orange arrows show distance
• Both arrows show distance only
• Both arrows show distance and displacement

Multiple Choice

Displacement is distance combined with

• direction
• speed
• velocity
• magnitude

Multiple Choice

Length of path between two points

• Reference Point

• Distance

• Displacement

• Position

Multiple Choice

The object's overall change in position

• Reference Point

• Distance

• Displacement

• Position

Multiple Choice

You walk 5 meters. Is this 1) distance or displacement, and 2) a scalar or a vector quantity?

• distance, scalar

• displacement, scalar

• distance, vector

• displacement, vector

Multiple Choice

You walk 10 meters to the west. Is this 1) distance or displacement, and 2) a scalar or vector quantity?

• distance, scalar

• displacement, scalar

• distance, vector

• displacement, vector

Multiple Choice

The pickup truck has a changing velocity because the pickup truck -

• can accelerate faster than the other two vehicles

• is traveling in the opposite direction from the other two vehicles

• is traveling on a curve in the road

• needs a large amount of force to move

Multiple Choice

What is the difference between the velocity and the speed of an object?

• Velocity is the change in distance over time, while speed is the change in velocity over time.

• Velocity has a direction associated with it, while speed has no specific direction

• Velocity has no direction associated with it, while speed has a specific direction

• Velocity is the change in speed over time, while speed is the change in distance over time

Multiple Choice

It took Shawn 6 hours to walk to Susan's house at 2 km/hr. How far is it between Shawn's house and Susan's house?

• 12 km

• 3 km

• 12 hours

• 3 hours

Multiple Choice

Fonzie flies through the air 24 meters on water skis wearing a leather jacket with swimming trunks over the shark. It takes him 2 seconds to make the jump. How fast was Fonzie flying through the air on water skis in a leather jacket and swimming trunks?

• 8 m/sec

• 12 m/sec

• 22 m/sec

• 26 m/sec

Match

Match the following

• Speed

• Velocity

• Acceleration

30 m/s

30 m/s east

30 m/s²

• 30 m/s

• 30 m/s east

• 30 m/s²

Multiple Choice

A positive acceleration means that your object is

• at rest

• speeding up

• moving

• slowing down

Multiple Choice

A negative acceleration means that your object is  

• constant

• speeding up

• at rest

• slowing down

Multiple Choice

Acceleration of an object happens when things ________

• slow down
• go faster
• change direction (turn)
• All of the above

Multiple Choice

A car starts from rest and accelerates uniformly over a time of 5.21 seconds for a distance of 110 m. Determine the acceleration of the car. Choose the appropriate equation.

• a = (v_f - v_i)/t

• d=v_it+1/2at²

• v_f²=v_i²+2ad

Multiple Choice

A car starts from rest and accelerates uniformly over a time of 5.21 seconds for a distance of 110 m. Determine the acceleration of the car. Choose the appropriate equation.

• a = (v_f - v_i)/t

• d=v_it+1/2at²

• v_f²=v_i²+2ad

Multiple Choice

An engineer is designing the runway for an airport. Of the planes that will use the airport, the lowest acceleration rate is likely to be 3 m/s². The takeoff speed for this plane will be 65 m/s. All airplanes will start from rest. Assuming this minimum acceleration, what is the minimum allowed length for the runway? Choose the appropriate equation.

• a = (v_f - v_i)/t

• d=v_it+1/2at²

• v_f²=v_i²+2ad

Multiple Choice

A car is traveling to the right with a speed of 29​​m/s when the rider slams on the accelerator to pass another car. The car passes in 110 m with constant acceleration and reaches a speed of 34m/s. We want to find the acceleration of the car as it sped up. What equation should you choose?

• a = (v_f - v_i)/t

• d=v_it+1/2at²

• v_f²=v_i²+2ad

Multiple Choice

If Michael Jordan has a vertical leap of 1.29 m, then what is his takeoff speed if his acceleration is -9.8 m/s² and his velocity at the top of his leap i 0 m/s. Choose the appropriate equation.

• a = (v_f - v_i)/t

• d=v_it+1/2at²

• v_f²=v_i²+2ad

Multiple Choice

A car is traveling at 21.0 m/s. It slows to a stop at a constant rate over 5.00 s. How far does the car travel during those 5.00 seconds before it stops? 

• 4.20 m
• 52.5 m
• 105 m
• 158 m

Multiple Choice

A roller coasters accelerates from an initial velocity of 6.0 m/s to a final velocity of 70 m/s over 4 seconds.  What's the acceleration?

• 24 m/s²
• 18 m/s²
• 16 m/s²
• 16 m/s