Changes in Force and Motion

Quiz by Nussbaum, Marjorie (DCPS)

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34 questions
• Q1
What is direction?
a set of lines showing where an object will travel or where it has already traveled
a straight path that an object can move along
a line that indicates position
a picture of an object's motion
30s
• Q2
What is a push or pull that changes the motion of an object?
speed
force
motion
velocity
30s
• Q3
What is mass?
a measure of an object's weight
a measure of how much matter is present in a substance
a measure of the amount of any substance
a measure of the gravitational pull on an object
30s
• Q4
What is the correct term for the change in an object's position with respect to time and in comparison with the position of other objects used as reference points?
acceleration
speed
motion
velocity
30s
• Q5
The sum of all the forces acting on an object would be its
mass
weight
net force
volume
30s
• Q6
In what unit is force measured?
Newtons
Gravitational pull
Kilograms
Pounds
30s
• Q7
The best definition for the term reference frame is
a system that uses frames to outline background objects in order to establish position or to measure movement of a point in space
a system that uses coordinates or background objects to establish the size and movement of a point in space
a system that uses coordinates or background objects to establish position or to measure movement of a point in space
a system that measures movement of a point in space by comparing that point to the Sun
30s
• Q8
A change of motion caused by an unbalanced force acting on an object--this change may include increasing speed, decreasing speed and changes in direction
friction
acceleration
movement
velocity
30s
• Q9
In order to create motion, what must be present?
balanced forces
velocity
speed
unbalanced forces
30s
• Q10
When an object is not moving, its potential energy is
constantly changing
at its greatest
at its least
fixed
30s
• Q11
When an object is in motion, potential energy is
diminished
being converted to force
increased
changed into kinetic energy
30s
• Q12
Forces result in a change in
both the speed and the direction of motion
the momentum of the motion
the speed of motion.
the direction of motion
30s
• Q13
The term speed refers to
the rate of acceleration of an object
the rate of motion of an object
the rate of velocity of an object
the rate of momentum of an object
30s
• Q14
Speeding up and slowing down are changes in motion caused by force. Any change in the speed or direction of a motion is called
kinetic energy
momentum
velocity
acceleration
30s
• Q15
The relationship between force, mass, and acceleration can be expressed by the formula
force [in kilograms (kg)] = mass [in grams (g)] x acceleration [in meters per second per second (m/s/s)]
force [in Newtons (N)] = mass [in grams (g)] x acceleration [in meters per second per second (m/s/s)]
force [in Newtons (N)] = mass [in kilograms (kg)] x acceleration [in meters per second per second (m/s/s)]
force [in Newtons (N)] = mass [in kilograms (kg)] x acceleration [in meters per second (m/s)]
30s

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