WorksheetsCh 11 Forces
Total questions: 28
Worksheet time: 15mins
Word for "push or a pull"
gravity
force
acceleration
What are forces measured in?
m/s
velocity
Newtons
Is weight proportional to mass?
yes
no
What force has to be overcome for an object to start moving?
air resistance
sliding friction
static friction
What is the upward force on an object falling through air
air resistance
friction
gravity
What would happen to a thrown ball if gravity didn't exist
fall down
continue traveling horizontally
float midair
continue traveling vertically
What force opposes motion?
strength
gravity
friction
direction
How are forces represented in pictures and diagrams?
boxes
arrows
stars
Which is not a type of friction?
static
sliding
fluid
vector
"objects that have mass have a gravitational pull on each other" is the law of ....
Universal gravitation
Newtons 1st law
Newtons 2nd law
Newtons 3rd law
How does an increase in distance affect gravity?
decrease
increase
How does an increase in mass affect gravity?
increase
decrease
Which is a contact force?
ball falling
playing piano
magnets attracted
Which is a noncontact force?
karate chop
ball and bat
gravity pulling down
what happens when balanced forces act upon an object?
objects motion stays the same
stays at rest
object accelerates
what happens when unbalanced forces act upon an object?
object stays at rest
object accelerates
motion stays the same
How can an object accelerate?
change in speed
change in direction
change in circles
change in appearance
If you are playing tug of war and the rope moves off-center, you know the forces are _______.
big
unbalanced
directional
balanced
What law states the relationship between force, mass, and acceleration?
Newtons 1st law
Newtons 2nd Law
Newtons 3rd law
What is the relationship between force, mass, and acceleration?
mf=a
f=ma
f=m/a
How does the moon orbit the earth?
forces
centripetal force
friction
What is the perpendicular force on satellites orbiting the earth?
gravity
friction
resistance
What type of collision has objects stick together?
elastic
inelastic
forced
friction
What type of collision has objects bounce off?
elastic
inelastic
forced
friction
What is it when two objects apply forces to each other?
force pair
gravity
noncontact force
What is the equation for momentum?
p=mv
m=pv
v=mp
For every action there is an equal and opposite reaction
Newtons 1st law
Newtons 2nd law
Newtons 3rd law
When an object exerts a force on another object the force applied is met with a reaction force that is __________________________________ and _________________________________.
equal in strength
different strength
same direction
opposite direction
