WorksheetsForces and Newton's Laws
Total questions: 50
Worksheet time: 25mins
a push or pull
force
friction
gravity
inertia
An object must move, in order for force to be acting on it
true
false
the sum of all the forces acting on an object
weight
gravity
net force
balanced force
What is the SI unit of force?
m/s 2
kg
N
N/kg
movement resulting in a net force
balanced forces
unbalanced forces
no movement resulting in no net force
balanced forces
unbalanced forces
Two people push on a box in opposite directions. One pushes with a force of 10N and one with a force of 40N. What is the net force on the box?
50N
30N
-30N
no net force
Two people push on a box in the same direction. One pushes with a force of 10N and one with a force of 40N. What is the net force on the box?
50N
30N
-30N
no net force
the force that opposes the sliding motion of two surfaces that are touching each other
gravity
air resistance
friction
weight
What type of friction cancels your force?
rolling
static
sliding
What type of friction opposes the motion of an object?
rolling
static
sliding
Static friction is required in order for wheels to roll
true
false
an attractive force between any two objects dependent on the mass of the objects and the distance between them
air resistance
weight
gravity
net force
Gravity depends on what two things?
mass and force
force and distance
weight and mass
distance and mass
a region of space that has a physical quantity, such as force, at every point
field
planet
space
air
Gravity has an infinite range. Infinite means __
strong
limitless
weak
measurable
What is the strength of gravity measured in?
N
m/s2
kg
N/kg
the gravitational force exerted on an object
mass
gravity
weight
friction
What is the SI unit for weight?
N
kg
N/kg
lb
Gravitational strength on earth is always
9.8 m/s2
changing
increasing
9.8 N/kg
If a book has a mass of 0.2kg, what is the weight of the book on earth?
not enough information
0.2 N
1.96 N
20 N
Your weight is the same on the moon as it is on earth
true
false
Which law states: an object in motion stays in motion, an object at rest stays at rest, unless acted upon by an unbalanced force
Newton's First Law
Newton's Second Law
Newton's Third Law
Which law is often referred to as the law of inertia?
Newton's First Law
Newton's Second Law
Newton's Third Law
the tendency of an object resist any change in its motion
inertia
resistance
friction
gravity
an object's inertia depends on its ___
size
mass
weight
gravity
Which one has the most inertia?
a ping pong ball
a basketball
a tennis ball
a bowling ball
which of the following would have the least amount of inertia?
a ping pong ball
a tennis ball
a basketball
a bowling ball
Which law states: an object's acceleration is in the same direction as the net force acting on that object
Newton's First Law
Newton's Second Law
Newton's Third Law
As force increases, acceleration decreases
true
false
As mass increases, acceleration decreases
true
false
The mass of a bowling ball is 2kg. If it has an acceleration of 50m/s2 , what is the net force exerted on the ball?
25 N
100 N
48 N
0.04 N
In the formula Fg=mg, what does Fg represent?
momentum
gravity
weight
mass
Which law states: for every action, there is an equal and opposite reaction
Newton's First Law
Newton's Second Law
Newton's Third Law
According to Newton's First Law, at what speed would an unbelted passenger be ejected from a car that hits a wall?
half the car's original speed
double the car's speed
the same speed the car was traveling
impossible to know
In a crash, what type of gas is released to inflate an airbag?
Oxygen
Helium
Nitrogen
Carbon Dioxide
Acceleration due to gravity on earth is always
dependent on the mass
9.8 m/s2
9.8 N/kg
changing
the friction like force that opposes the motion of objects that move through the air
terminal velocity
friction
gravity
air resistance
Air resistance always exerts an upward force
true
false
Amount of air resistance on an object depends on all of the following except:
size
strength of gravity
speed
shape
the maximum speed an object will reach when falling through the air
9.8 m/s2
terminal velocity
free fall
acceleration
if gravity is the only force acting on an object
free fall
air resistance
weightlessness
terminal velocity
a force exerted toward the center of a curved path
centripetal acceleration
centripetal force
free fall
friction
You push on a wall with a force of 300N but the wall doesn't move. What is the net force on the wall?
300 N
0 N
unknown
600 N
You push on a wall with a force of 300N but the wall doesn't move. With what force does the wall push back?
300 N
0 N
unknown
600 N
Which law states: momentum is transferred from one object to another
Newton's First Law
Law of Universal Gravitation
Newton's Second Law
Law of Conservation of Momentum
A car crashes into a wall and is designed to crumple. What law can explain this?
Newton's First Law
Newton's Second Law
Newton's Third Law
Which law states: the gravitational force increases as the mass of either object increases and/or as the objects move closer
Newton's First Law
Newton's Second Law
Law of Universal Gravitation
Law of Conservation of Momentum
Gravity is one of ___ fundamental forces
2
3
4
infinite
the amount of matter in an object
100 N
mass
weight
density
