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WorksheetsPhysics Midterm Quiz
Total questions: 20
Worksheet time: 21mins
All of the following are examples of inclined planes EXCEPT -
a table
slide
windshield
pyramids
The greatest amount of force is required to move the metal block up which inclined plane?
a
b
c
d
Movers needed to move a heavy box from the bottom of some stairs to the top of the stairs. They placed a ramp over the stairs and pushed the box up the ramp.
Which best explains why the movers used a ramp to move the box?
a sloping ramp up which heavy loads can be raised
A threshold ramp can be composed of either metal or rubber
The ramp reduced the amount of
force needed to move the box.
the incline of the ramps degree helps to determine the boxes speed
The inclined plane makes work easier by __________________ the amount of effort that must be applied to raise or lower a load.
supplying
applying
the force of
reducing
How does distance change the effort when using an inclined plane?
as distance increases, effort increases
as distance increases, effort decreases
as effort decreases, the distance is the same
as effort increases, the distance is the same
For friction on an incline, what direction does Fp point?
Always up the incline and parallel to the surface
pulls in the middle from all directions
pulls away from gravity, going up
Always down the incline and parallel to the surface
Rougher surfaces have ...
harder fristion
greater friction
the least amount of friction
no friction
When looking at friction problems, if the net force in the x-direction on an object is zero, what can we say about its acceleration?
its going up
its going down
its exponential
its zero
What direction does friction act relative to motion?
goes positve
goes negative
opposite direction
neutral
Normal force is
Always perpendicular to the surface
Opposite to the surface
Against the surface
Moving away from the surface
Any object thrown into space upon which the only acting force is gravity is known as
gravitational object
a meteor
free object
projectile
Example of projectile is
walking fast
butterfly flying
A baseball batted or thrown
fish moving in a pond
The path followed by a projectile is known as a
trajectory
hyperbola
tangent
parabola
Path taken by a projectile is known as
Particle motion
Parabolic motion
Projectile motion
trajectory motion
In projectile motion, the modulus of rate of change of speed.
First increases then decreases
First decreases then increases
is zero
is constant
Use the picture above to choose the most accurate description of the object's motion
object is speeding up in the positive direction
object is slowing down in the negative direction
object is slowing down in the positive direction
object is speeding up in the negative direction
The slope of the velocity-time graph tells us the
acceleration
velocity
displacement
direction of travel
In the position vs. time graph, what type of motion does the line represent?
Acceleration
Constant velocity
No motion
Deceleration
In the position vs. time graph, what type of motion does the line represent?
Acceleration
Deceleration
Constant Velocity
No motion
Use the picture to choose the most accurate description of the object's motion
object is moving at constant speed in the positive direction
object is speeding up in the negative direction
object is speeding up in the positive direction
object is slowing down in the negative direction
