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Science 6 Chapter 6 Test Set B
Test Description: Forces
Instructions: Answer all questions to get your test result.
1) The overall force on an object after all the forces are added together is called the
A
nonzero net force
B
balanced force
C
net force
D
unbalanced force
2) One __________ is the force required to accelerate 1 kilogram of mass at one meter per second per second.
A
kilogram-meter
B
kilogram
C
meter per second
D
newton
3) The force of gravity between you and Earth is greater than the force of gravity between you and a car because
A
The earth has a strong magnetic field
B
Earth has more mass than a car
C
The Earth is spinning quickly.
D
Earth is closer to you than the car
4) According to Newton's third law of motion, the strength of a reaction force is __________ the strength of the action force.
A
in the same direction as
B
equal to
C
less than
D
greater than
5) The force of gravity is responsible for continuously changing the ____________ in which a satellite moves.
A
speed
B
velocity
C
momentum
D
direction
6) When the only force acting on a falling object is air resistance, the object is said to be in free fall.
A
False: Change air resistance to friction
B
False: Change air resistance to gravity
C
False: Change air resistance to momentum
D
True
7) The property of matter that resists a change in motion is inertia.
A
False: Change inertia to momentum
B
False: Change inertia to acceleration
C
True
D
False: Change inertia to mass
8) According to Newton's second law of motion, weight depends on an object's mass and the net force acting on an object.
A
False: Change weight to inertia
B
True
C
False: Change weight to momentum
D
False: Change weight to acceleration.
9) Friction depends on the type of surfaces involved and how hard the surfaces push together.
A
False: Change hard to smooth
B
False: Change hard to sliding
C
True
D
False: Change hard to soft
10) Mass and air resistance affect the gravitational attraction between objects.
A
False: Change air resistance to momentum
B
False: Change air resistance to acceleration
C
True
D
False: Change air resistance to distance
*select an answer for all questions
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