Science 6 Chapter 6 Test Set B Question Preview (ID: 35011)


Forces. TEACHERS: click here for quick copy question ID numbers.

The overall force on an object after all the forces are added together is called the
a) net force
b) balanced force
c) unbalanced force
d) nonzero net force

One __________ is the force required to accelerate 1 kilogram of mass at one meter per second per second.
a) kilogram
b) kilogram-meter
c) newton
d) meter per second

The force of gravity between you and Earth is greater than the force of gravity between you and a car because
a) Earth has more mass than a car
b) Earth is closer to you than the car
c) The earth has a strong magnetic field
d) The Earth is spinning quickly.

According to Newton's third law of motion, the strength of a reaction force is __________ the strength of the action force.
a) greater than
b) equal to
c) less than
d) in the same direction as

The force of gravity is responsible for continuously changing the ____________ in which a satellite moves.
a) speed
b) velocity
c) direction
d) momentum

When the only force acting on a falling object is air resistance, the object is said to be in free fall.
a) True
b) False: Change air resistance to gravity
c) False: Change air resistance to friction
d) False: Change air resistance to momentum

The property of matter that resists a change in motion is inertia.
a) True
b) False: Change inertia to mass
c) False: Change inertia to acceleration
d) False: Change inertia to momentum

According to Newton's second law of motion, weight depends on an object's mass and the net force acting on an object.
a) True
b) False: Change weight to momentum
c) False: Change weight to inertia
d) False: Change weight to acceleration.

Friction depends on the type of surfaces involved and how hard the surfaces push together.
a) True
b) False: Change hard to smooth
c) False: Change hard to soft
d) False: Change hard to sliding

Mass and air resistance affect the gravitational attraction between objects.
a) True
b) False: Change air resistance to distance
c) False: Change air resistance to acceleration
d) False: Change air resistance to momentum

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