Worksheets3Q - Refresher 1
Total questions: 20
Worksheet time: 11mins
The momentum of an object depends upon the object's ___ and ___.
mass and energy
size and shape
mass and speed
mass and velocity
A runner has a momentum of 670 kg m/s and is travelling at a velocity of 9 m/s. What is his mass?
6030 kg
0.0134 kg
74.4 kg
603 kg
Which one of the following units represents the standard metric units of momentum?
Newtons * meter / second
Kilograms * meter / second
meter / second
Kilograms * meter / second2
Which equations can you use to calculate impulse? Choose all that apply.
p = mv
ΔF = mt
Δp =mΔv
Δp = ΔmΔv
Δp = FΔt
At what point is vy= 0 m/s?
A
B
C
D
None of these points
Which vector pair (arrow pair) correctly represents the acceleration and velocity at point P?
In the absence of air resistance, the angle at which a thrown ball will go the farthest is?
45°
60°
30°
90°
A textbook is dropped from a second floor window and falls to the ground. What happens to the velocity as the book falls to the ground?
Needs more information
the velocity increases
the velocity decreases
the velocity remain constant
A ball is thrown upward with an initial speed of 30m/s. At what location will the ball be moving downward with a speed of 20m/s?
A
B
E
F
What describes "the energy of an object in motion, which is directly related to its velocity and its mass"?
kinetic energy
potential energy
accelerated energy
heat energy
How is speed measured?
how far an object travels multiplied by the time it takes
how fast object moves compared to another object
the distance an object travels divided by the time it takes
how fast the object arrives at its destination
As distance between two objects increase, the pull of gravity ___.
Increases
Decreases
Stays the same
Needs more information
If all the satellites were the same mass, then which satellites has the highest gravitational force?
A- the furthest
B
C
D- the closest
If I double the mass of one object without changing anything else, What would happen to the gravitational force between that object and any other object?
Doubles
41 as much
Cut in Half
Quadruples
What type of friction acts on an object that is not yet moving?
Static
Dynamic
Kinetic
Rolling
An object is falling but it is not accelerating. What do you know?
Gravity is stronger than air resistance.
Air resistance is stronger than gravity.
Air resistance is equal to gravity.
The forces of air resistance and gravity are unbalanced.
What can cause a moving object to increase its speed in a forward direction?
a force pushing on the object from the opposite direction
a force that continually acts on the object in the direction the object is moving
a decrease in the mass of the object
an increase in the mass of the object
What is the standard unit force is measured in?
Newtons
pounds
meters
grams
How much work is being done with 200 N of force over 426 meters?
85,200 J
62,329 J
90,480 J
45,620 J
What would you solve for if given distance and force?
work
impulse
time
power
