WorksheetsCH 5 FORCES REVIEW
Total questions: 52
Worksheet time: 1hrs 3mins
A kilogram is a unit of _____.
mass
force
weight
A Newton is a unit of _____.
mass
force
A pound is a unit of _____.
mass
force
The SI Unit of force is a(n) _____.
pound
kg
Newton
Joule
1 kg = _____ lbs
2.2
4.448
9.8
8.9
1 lb = _____ N
2.2
4.448
9.8
8.9
The amount of force needed to cause a mass of 1kg to accelerate by 1 m/s/s is a(n) _____.
Newton
gravity
speed
acceleration
An attractive force between any 2 objects is called _____.
kilograms
Pounds
Newtons
gravity
Gravity depends on _____.
mass and distance
mass and speed
speed and distance
speed and acceleration
Which statement about gravity is correct?
mass increase, gravity increases
distance increases, gravity increases
mass decreases, gravity increases
gravity does not depend on mass and distance
A force that comes from Earth's gravity is called _____.
weight
kilograms
mass
matter
A force that changes with changes in gravity is called _____.
weight
kilograms
mass
matter
A measure that does not change with changes in gravity is called _____.
weight
Newtons
mass
pounds
A measure that changes with changes in gravity is called _____.
weight
kilograms
mass
matter
Weight depends on _____.
mass and distance
mass and gravity
gravity and distance
mass and matter
When the only force acting on an object is gravity and the air resistance is negligible, a falling object is said to be in _____.
free fall
terminal velocity
trouble
equlibrium
An object in free fall accelerates due to the force of _____.
gravity
weight
mass
speed
Objects in free fall undergo _____ acceleration.
constant
increasing
decreasing
none
Objects in free fall undergo _____ speed.
constant
increasing
decreasing
none
Objects that have reached terminal velocity undergo _____ speed.
constant
increasing
decreasing
none
Objects that have reached terminal velocity are in _____ acceleration.
constant
increasing
decreasing
no
When the upward force of air resistance equals the downward force of gravity an object has reached _____.
terminal velocity
free fall
increasing speed
increasing acceleration
The highest speed a falling object will reach is called _____.
terminal velocity
free fall
increasing speed
increasing acceleration
A force that resists the motion of objects or surfaces is called _____.
friction
speed
acceleration
mass
Friction is measured in _____.
Newtons
pounds
mass
matter
A frictional force that occurs when one surface slides past another surface is called _____ friction
static
rolling
sliding
non
A frictional force that occurs when one surface rolls past another surface is called _____ friction
static
rolling
sliding
non
A frictional force that occurs between 2 non-moving surfaces is called _____ friction
static
rolling
sliding
non
If mass stays the same and friction increases, speed _____.
increases
decreases
doesn't change
If mass stays the same and friction increases, the force needed to move the object _____.
increases
decreases
doesn't change
When all forces acting on an object are equal, the forces are _____.
balanced
unbalanced
unequal
different
A friction-like force that opposes the motion of objects in the air is called _____.
static
rolling
sliding
air resistance
When all forces acting on an object are not equal, the forces are _____.
balanced
unbalanced
equal
similar
When calculating _____ force, all forces must be taken into account.
net
normal
equilibrium
Star Wars
If the forces acting on an object are balanced, the object is in _____.
equilibrium
an unbalanced state
unequalness
free fall
If the forces acting on an object are balanced, the net force is _____.
0
greater than 0
less than zero
If the forces acting on an object are unbalanced, the net force is _____.
0
greater than 0
less than zero
If the forces acting on an object are balanced, the motion of the object _____.
will change
will not change
If the forces acting on an object are unbalanced, the motion of the object _____.
will change
will not change
The upward force created when an object is in contact with a surface is _____ force.
net
normal
increasing
unbalanced
If an object on a table has a weight of 50 N, the normal force is _____.
0
50 N
9.8 N
5.1 N
Calculate the net force,
50 N right
50 N left
140 N right
90 N left
The forces in the picture are ____.
unbalanced
balanced
in equilibrium
the same
Calculate the net force.
70 N right
70 N left
0 N
140 N
The forces in the diagram are _____.
balanced
unbalanced
different
unequal
How much does a 105 lb box weigh in kg?
about 1029 kg
about 231 kg
about 48 kg
about 11 kg
How much does a 88 kg box weigh in lbs?
about 194 lbs
about 40 lbs
about 862 lbs
about 9 lbs
How much does a 60 kg box weigh in Newtons on Earth?
about 28 N
about 132 N
about 588 N
about 6 N
How much does a 108 lb box weigh in Newtons on Earth?
about 480 N
about 1058 N
about 11 N
about 24 N
An object is in free fall for 8.2 seconds. How far will it fall?
about 329 m
about 3224 m
about 659 m
about 40 m
An object is in on a cliff that is 1350 meters high. How long will it fall?
about 16 s
about 275 s
about 11 s
about 5 s
A motorcycle, with a weight of 2700 Newtons is traveling down the road. The engine provides 5500 Newtons of force. There is 500 Newtons of friction and 200 Newtons of air resistance. Calculate the net force acting on the motorcycle?
4800 Newtons forward
8900 Newtons forward
2200 Newtons up
5000 Newtons forward
2700 Newtons down, 4800 Newtons forward
