Transcript Practice Clicker Questions: Objects in Motion

Clicker Question Review
Objects in Motion
Does a force keep the cannonball moving
forward after it leaves the cannon?
1. Yes
2. No
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Asteroids have been moving through space for
billions of years. What keeps them moving?
1. The force of
gravity
2. Inertia
3. Solar Wind
4. Magnetic
Forces
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What physical quantity is a measure of how
much inertia an object has?
1.
2.
3.
4.
5.
Mass
Volume
Density
Area
Weight
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The mass of 1 kilogram of iron
1. Is less on the
Moon.
2. Is the same on
the Moon.
3. Is greater on the
Moon.
4. Weighs the same
everywhere.
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The equilibrium rule, F = 0, applies to
1. objects or systems
at rest.
2. objects or systems
in uniform motion in
a straight line.
3. Both of the above.
4. None of the above.
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The platform in the diagram is in mechanical
equilibrium (F = 0). What is the tension in the
rope on the right-hand side?
1.
2.
3.
4.
5.
850 N
300 N
550 N
400 N
450 N
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Which of the following is
acceleration?
1.
2.
3.
4.
How much distance is
traveled in a given
amount of time.
A push or a pull that
changes an object’s
motion.
A change in velocity or
the motion of an object.
The amount of matter
contained in an object.
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You drive around a curve on the road while maintaining a
constant speed of 50 miles/hour. Did your velocity change
and therefore did you undergo an acceleration?
1. Yes
2. No
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You drive a car toward the south and apply the
brakes causing a decrease in your velocity. In
what direction is the acceleration.
1. South
2. North
3. There is no
acceleration when
velocity
decreases.
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Your velocity increases from 20 m/s to 50 m/s in a
time span of 3s. What is the magnitude of your
acceleration.
1.
2.
3.
4.
5.
6.
30 m/s
30 m/s2
10 m/s
10 m/s2
20 m/s
20 m/s2
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You are driving North on Highway 99 at a velocity of 30
m/s. Your velocity decreases to 20 m/s in a time span of 2
s. Which of the following is your acceleration?
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2.
3.
4.
5.
Acceleration = 0
because your velocity
decreased.
5 m/s2 toward the
South.
5 m/s2 toward the North.
10 m/s2 toward the
South.
10 m/s2 toward the
North.
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