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Score
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15
×
The acceleration due to gravity is approximately "9.8 m/s²"
True – This is the accepted standard near Earth’s surface.
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15
×
In a particle model, rotation is ignored
True – Particle has no size or rotation.
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15
×
Displacement can be negative depending on chosen coordinate system
True – Direction matters.
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×
seesaw
Swap points!
Oops!
×
magnet
Take 15 points!
Okay!
×
shark
Other team loses 5 points!
Okay!
×
lifesaver
Give 5 points!
Oops!
15
×
Frictional forces always oppose motion or attempted motion
True – That is their nature.
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15
×
The unit of force is the newton, abbreviated as "N"
True – Standard SI unit of force.
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15
×
An object thrown vertically upward experiences a constant upward force
False – Gravity acts downward throughout.
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15
×
Speed is a scalar and velocity is a vector
True – Velocity has direction, speed does not.
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15
×
The magnitude of acceleration is the slope of a velocity-time graph
True – Slope = acceleration.
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15
×
The resultant of two perpendicular forces is found using Pythagoras’ theorem
True – Vector addition applies.
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15
×
If an object’s speed increases, its acceleration is positive
False – Acceleration direction depends on the chosen coordinate system.
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15
×
Velocity and speed are the same if the direction is ignored
True – Speed is the magnitude of velocity.
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×
thief
Give points!
5
10
15
20
25
×
rocket
Go to first place!
Okay!
×
gift
Win 25 points!
Okay!
×
thief
Give points!
5
10
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25
15
×
The acceleration vector always points in the same direction as velocity
False – It can be opposite (deceleration).
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15
×
The displacement of a particle is the shortest distance from the initial to final position
True – Displacement is a vector between two points.
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×
thief
Give points!
5
10
15
20
25
×
shark
Other team loses 15 points!
Okay!
×
shark
Other team loses 25 points!
Okay!
×
lifesaver
Give 20 points!
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×
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