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Mass/Weight/Gravity
Test Description: Mass vs. Weight and Gravity- 8th grade test
Instructions: Answer all questions to get your test result.
1) Which of the following is true about weight?
A
weight is measured in grams with a spring scale.
B
weight is measured in grams with triple-beam balance.
C
weight is measured in newtons with a triple-beam balance.
D
weight is measured in newtons with a spring scale.
2) If a 3.1 kg textbook weighs 19.6 N on Venus, then what is Venus' strength of gravity? (w=mg)
A
6.3 kg
B
6.3 N/kg
C
60.76 N
D
60.76 N/kg
3) A student swings a ball attached to a string to model the moon's orbit around the Earth. What force does the string represent?
A
inertia
B
pressure
C
momentum
D
gravity
4) If there were no gravitational forces acting on the moon, the moon would
A
still orbit the Earth as it does now
B
remain stationary, at a fixed distance from Earth
C
continue at a constant speed in a straight line through space
D
quickly crash into the Earth
5) Gravity causes bodies in the solar system to
A
stay in orbit
B
repel one another
C
move in a circular path
D
fall in a straight path
6) Which of the following is true about mass?
A
mass is measured in newtons with a spring scale
B
mass is measured in grams with a spring scale
C
mass is measured in grams with a triple-beam balance
D
mass is measured in newtons with a triple-beam balance
7) What is the best way to increase gravitational attraction between two objects?
A
decrease the distance between objects and decrease the mass of the objects
B
increase the distance between objects and decrease the mass of the objects
C
decrease the distance between objects and increase the mass of the objects
D
increase the distance between objects and increase the mass of the objects
8) A student stands on a scale, and the scale reads 85 pounds. What is being measured by the scale?
A
the mass of the student
B
the volume of the student
C
the air pressure surrounding the student
D
the force of gravity acting on the student
9) Because of the pull of gravity of the sun on the moving planets, they follow
A
an inward path toward the sun
B
a straight path through space
C
curved, elliptical path around the sun
D
a perfectly circular path around the sun
10) Which is needed to determine the amount of gravitational force between two objects?
A
area and weight
B
weight and time
C
volume and mass
D
distance and mass
*select an answer for all questions
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