WorksheetsUnit 4 quiz 2 Study guide
Total questions: 58
Worksheet time: 43mins
The weight of an object changes as the location changes
Right
Wrong
A child has a mass of 30 Kg on Earth. If the gravity on Moon is one sixth that of the Earth what is the mass of the child on Moon? Take g=9.8 m/s^2
30 Kg
180 Kg
5 Kg
0 Kg
If an object mass =30 Kg on the Earth, what would be it's weight on Earth ? Take g=9.8m/s^2
30 N
294 kg
300 N
294 N
What does this tool (spring scale)measure?
weight
meters
mass
force
What is missing
H
m
D
n
Which statement is correct about the mass of the chair on the earth and moon?
mass is greater on the moon
mass is less on the moon but not equals to zero
mass is zero on the moon
mass is the same on the moon
What do you use to measure the mass of an object?
What is missing?
D
N
W
L
What is missing
g
D
L
n
Which is constant for a freely falling object?
displacment
acceleration
velocity
speed
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
the velocity increases
the velocity decreases
the velocity remain constant
A textbook is dropped from a second floor window and falls to the ground. What happens to the acceleration as the book falls to the ground
the acceleration increases
the acceleration decreases
the acceleration remains constant
A textbook is dropped from a second floor window and falls to the ground. What direction is the velocity?
upward
downward
A textbook is dropped from a second floor window and falls to the ground. What direction is the acceleration?
upward
downward
The acceleration of a freely falling body on Earth is
9.8 m/s.
9.8 m.
9.8 m/s2.
9.8 s.
What is the vertical velocity of a ball that has been dropped off a cliff after 1 , 2, 3, 4, and 5 seconds? (assume g is rounded to 10 m/s2)?.
10, 20, 30, 40, 50 m/s
5, 10, 15, 20, 25 m/s
5, 20, 45, 80,125 m
10,10,10,10,10 m/s
What is the acceleration of a ball that is dropped off the side of a cliff after 1,2,3,4,5 seconds? (assume g is rounded to 10 m/s2)
5,10,15, 20, 25 m/s2
10, 20, 30, 40, 50 m/s2
5, 20, 45, 80, 125 m/s2
10,10,10,10,10 m/s2
Which would hit the ground first if dropped from the same height in a vacuum—a feather or a metal bolt?
the feather
the metal bolt
They would hit the ground at the same time.
They would be suspended (floating) in a vacuum.
§If an object is simply dropped from an elevated height, then the _____________of the object is 0 m/s.
initial velocity
final velocity
acceleration
When objects thrown into the air are halfway down, the velocity is
Zero
-
+
When objects thrown into the air are halfway up, the velocity is
Zero
+
_
When objects thrown into the air are halfway up, acceleration is
Zero
+
_
What force causes the skydiver to slow down?
Gravity
Air Resistance
Centripetal Force
Newtons
Are the forcing acting on the object balanced or unbalanced? The car is drifting.
balanced
unbalanced
Are the forcing acting on the object balanced or unbalanced? The squirrel is spinning.
balanced
unbalanced
Are the forces acting on the objects balanced or unbalanced? The truck takes a while to come to a complete stop.
balanced
unbalanced
Are the forces acting on the object balanced or unbalanced? Mario is running fast but STEADY. His speed is 10 mi/hr.
balanced
unbalanced
How will this object move?
It will not move
It will move in both directions
It will move to the right
It will move to the left
How will this object move?
It will not move
It will move in both directions
It will move to the right
It will move to the left
Shadell pushes a box 35 N to the right. Nazai pushes the box 25 N in the same direction. What is the net force?
(a)
Which of the answer choices is not a characteristic of a balanced force?
no change in motion
moving at a constant speed
causes a change in motion
net force of zero
A (a) is a push or a pull on an object.
What will cause an object at rest to move?
Applied forces
Balanced forces
Unbalanced forces
Newton's 1st Law is also called the Law of ...
Friction
Inertia
Unbalanced forces
Newtons
An object at rest remains at rest, or if in motion, remains in motion at a constant velocity unless acted on by a net external force. This is an example of Newton's
Second Law
First Law
Third Law
If an object is stationary, it means
the object is in motion
the object is experiencing air resistance
there are balanced forces acting on the object
there are unbalanced forces acting on the object
Which statement explains why you are thrown forward when the car you are riding in suddenly stops?
You are pushed forward by the force of the car stopping
The force of the crash accelerates you forward
You are are in motion as the car is driving, and when it stops, your body continues to be in motion
The car stopping must balance out by having you move forward
When travelling home from school on the AT train at a constant speed in a straight line, which statement is true
The driving force of the engine is bigger than friction and air resistance combined
There are no forces acting on the bus
The driving force of the engine is equal to friction and air resistance combined.
A resultant force is required to keep the bus moving
Describe what will happen to the truck in this picture
Accelerate
Decelerate
Constant speed
Stationary
A 20 kg object needs how big of a force to keep moving with the same velocity?
0 N
20 N
200 N
2 N
Newton's First Law applies to moving objects.
True
False
Newton's First Law only applies to objects at rest.
True
False
Only objects at rest have inertia.
True
False
Objects affected by balanced forces will not change their motion.
True
False
