TRUE OR FALSE: An object is under uniform acceleration when its direction is straight.
False.
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20
According to Newton's second law, what happens if you increase the force applied to an object?
It accelerates more.
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15
TRUE OR FALSE. A negative acceleration would imply that the object in question is in constant speed.
False.
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15
A car driving down the road runs out of gas (petrol), its acceleration decreasing but still moving. Which of Newton's laws explains why the car continues to move without gasoline (petrol)?
1st Law of Motion (Law of Inertia)
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20
An unstretched spring has a length of 0.10 meters. When the spring is stretched by a force of 16 newtons, its length is increased to 0.18 meters. What is the spring constant of this spring?
2.0 N/cm
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15
What are the units for acceleration?
meter per second squared (m/s^2)
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seesaw
Swap points!
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magnet
Take 10 points!
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fairy
Take points!
5
10
15
20
25
lifesaver
Give 20 points!
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15
(Mass Weight Density Acceleration) Among the choices, which of the following is the object's mass coupled with the gravitational force?
Weight.
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20
Has this material stretched beyond the limit of proportionality?
No.
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15
(Breakdown, Elastic limit, End of tether, Fracture stress) Hooke's Law fails when a material reaches its:
Elastic limit.
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25
A car travels 120 miles in 12 hours. What is the car's speed?
10 mph
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heart
Other team wins 5 points!
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gift
Win 20 points!
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gift
Win 20 points!
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banana
Go to last place!
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15
Balanced or Unbalanced?
Unbalanced.
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25
Rob Gronkowski spiked a 1.4kg football at the ground at an acceleration of 1.7m/s/s. What is the force at which the ball was spiked?