Lab: Newton's Laws of Motion — Unit test Answers
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Which describes an object’s speed when free falling in a vacuum?
A
The object accelerates until it reaches its terminal velocity.B
The object falls at a constant speed because only one force acts on it.C
The object falls faster and faster until it strikes the ground.D
The object speeds up and then stops when air resistance equals gravity.22
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Which piece of furniture will have the most inertia and give the furniture movers the most difficulty in moving?
A
a 50kg couchB
a 5kg dining chairC
a 75kg dining tableD
an 10kg end table23
The information in the table represents the effect of the mass of two objects on the gravitational force between the two objects.Which number should be in the cell with the question mark?
A
The number is two because when you double the mass of one of the objects, the force between the objects is halved.B
The number is four because when you double the mass of one of the objects, the force between the objects remains the same.C
The number is eight because when you double the mass of one of the objects, the force between the objects also doubles.D
The number is sixteen because when you double the mass of one of the objects, the force between the objects increases by a factor of 4.24
A scientist on Earth drops a hammer and a feather at the same time an astronaut on the moon drops a hammer and a feather.
A
The hammer hits the ground before the feather on both Earth and the moon.B
The hammer hits the ground before the feather on Earth, but the feather hits the ground first on the moon.C
The hammer and the feather hit the ground together on both Earth and the moon.D
The hammer hits the ground before the feather on Earth, and the hammer and feather hit at the same time on the moon.25
What is determined by calculating the slope of the position vs time graph?
p
positionv
velocityd
distanced
displacementDid you find these answers helpful?
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