# NZTF Test Review

## Quiz by Kris Nelson

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15 questions
• Q1
You are shooting to the top of power tower while increasing speed. Identify which direction the total force is pointing.
up
down
left
right
45s
• Q2
You are still moving up on power tower but nearing the top and slowing down. Identify which direction the total force is pointing.
Up
left
Down
right
45s
• Q3
An ice skater is coasting to the right but friction is slowing her down - which direction is total force?
left
down
up
right
45s
• Q4
Your teacher drops a marker. Identify the direction of total force as the marker falls to the floor.
left
down
right
up
45s
• Q5
You are traveling 70MPH down the highway with your car on cruise control. Identify the direction of total force.
up
left
no total force
right
30s
• Q6
Power Tower drops you from the top. What direction is total force?
up
down
right
left
45s
• Q7
A 75kg runner accelerates out of the starting blocks at a rate of 5 m/s/s. What is the total force on the runner?
15N
375N
0.0667N
755N
60s
• Q8
A 50kg monkey is riding in the elevator of a downtown Minneapolis office building. I really don’t know why. The elevator accelerates upward at 2.0 m/s/s. What is the force normal on the monkey?
590N
100N
490N
390N
60s
• Q9
Total force is _________________________ proportional to acceleration.
indirectly
inversely
directly
not
45s
• Q10
Mass is _______________ proportional to acceleration.
not
directly
diversely
inversely
45s
• Q11
A 50kg sled is being pulled with 100N of force. What is the acceleration of the sled?
5000 m/s/s
50 m/s/s
2 m/s/s
150 m/s/s
60s
• Q12
A 50kg sled is being pulled with 100N of force. What would happen to the acceleration if the mass was doubled?
stay the same
increase
decrease
60s
• Q13
A 50kg sled is being pulled with 100N of force. What would happen to the acceleration if the force was doubled?
decrease
increase
stay the same
60s
• Q14
A 50kg sled is being pulled with 100N of force. What would happen to the acceleration if the mass was doubled AND the force was doubled?
decrease
increase
stay the same
60s
• Q15
A 50kg sled is being pulled with 100N of force. What would happen to the acceleration if the mass was cut in half AND the force was doubled?
increase
decrease
stay the same
60s

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