# Introduction to Forces

## Quiz by Amoy Scott

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14 questions
• Q1
A moving car takes more and more time to pass mile markers along a highway. Which best describes the motion of the car?
speeding up
moving at the same speed
slowing down
changing direction
30s
• Q2
Which best explains the difference between speed and velocity?
Speed deals with upward motion, and velocity deals with forward motion.
Speed requires momentum, and velocity does not.
Velocity refers to living motion, and speed refers to non-living motion.
Velocity requires direction, and speed does not.
30s
• Q3
On a graph showing distance versus time, which type of line indicates no motion?
horizontal line
vertical line
downward-curving line
upward-curving line
30s
• Q4
How might the speed of a vehicle be determined if its speedometer is broken?
by measuring velocity and distance
by measuring velocity and time
by measuring acceleration and distance
by measuring distance and time
30s
• Q5
When a roller coaster makes sudden turns, why is a person’s body thrown from side to side?
because of the friction of the roller coaster on its tracks
because of the inertia of the person’s body
because of the speed of the roller coaster
because of the deceleration of the roller coaster as it turns
30s
• Q6
Which term describes the tendency of an object to resist changes in motion?
inertia
friction
force
velocity
30s
• Q7
A student standing outside does not feel Earth moving in space. What is the reference point that shows Earth is moving?
the sun
a moving car
wind
the student
30s
• Q8
If a force acts constantly on a stationary object, the object will ___________.
move at a constant speed in the direction of the force
accelerate in the direction of the force
remain stationary
accelerate in the opposite direction of the force
30s
• Q9
What of the following would typically be used to express speed?
centimeters per mile
miles per hour
grams per liter
degrees per liter
30s
• Q10
A river flows south at 10 meters per second. A canoe set out from the river’s eastern shore straight across toward the other side. Which best describes the canoe’s path?
The canoe's path will be a diagonal line from southeast to northwest.
The canoe's path will be a straight line from east to west.
The canoe's path will be a diagonal line from northeast to southwest.
The canoe's path will be a straight line from north to south.
30s
• Q11
If a force acting on a moving object stops acting, the object will:
move at a slower speed.
keep moving at a constant speed.
still moving
speed up
30s
• Q12
When a car goes around a corner at 20 mph, why do we say it accelerates?
The car is accelerating because it's changing direction.
The car is accelerating because the velocity is constant.
The car accelerates because it's going 20 mph.
Cars accelerate when they are in motion.
30s
• Q13
Three forces are acting upon the box shown in the diagram below. Assuming there is no friction between the floor and the ground, how will these forces affect the position of the box?
The forces will cause the box to move to the left.
The forces will cause the box to collapse to the ground.
The forces will be unable to move the box in any direction.
The forces will cause the box to move to the right.
30s
• Q14
Which statement is the best interpretation of the graphed data?
The car is at rest for 4 seconds and then steadily decreases in speed.
The car increases in speed for 4 seconds and then decreases in speed.
The car decreases in speed for 4 seconds and then increases in speed.
The car is at rest for 4 seconds and then steadily increases in speed.
30s

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