#### Transcript File jeopardy_review_ch_4

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Final Jeopardy
Types of
Forces
Force
Diagrams
Newton’s
First Law
Newton’s
2d & 3d
Laws
Everyday
Forces
10 Point
10 Point
10 Point
10 Point
10 Point
20 Points
20 Points
20 Points
20 Points
20 Points
30 Points
30 Points
30 Points
30 Points
30 Points
40 Points
40 Points
40 Points
40 Points
40 Points
50 Points
50 Points
50 Points
50 Points
50 Points
This kind of force
requires contact
between two
objects.
What is a contact
force?
This kind of force
does not require
objects to be in
contact.
What is a field
force?
This type of force
includes gravity.
What is field force?
This type of force
includes friction.
What is contact
force?
This long range
field force affects
all matter in the
universe.
What is gravity?
This type of force
diagram shows the
forces acting on one
object.
What is “free body
diagram”?
In a force diagram,
this is the direction
gravity points.
What is straight
down?
In a force diagram
of a falling object,
this is the direction
air resistance
points.
What is up?
If a force diagram
shows only a 3 N
force up and a 3 N
force down, this is
the net force.
What is 0?
If a force diagram
shows a 3 N force to
the right and 4 N
down, this is the
amount of the net
force.
What is 5 N?
It’s the net force
that is acting on an
object that is at
rest.
What is 0?
It’s the net force
acting on an object
that is moving with
constant velocity.
What is 0?
This refers to an
object’s resistance
to changes in its
motion.
What is inertia?
It’s what an object
that has a net force
on it must do if it
doesn’t change
speed.
What is “change
direction”?
Of a car or a
bicycle, it’s the one
that has more
inertia.
What is a car?
According to this
law, forces always
come in
action/reaction
pairs.
What is Newton’s
3d Law?
According to this
law, acceleration is
directly
proportional to
force.
What is Newton’s
2d Law?
According to this
law, acceleration is
inversely
proportional to
mass.
Newton’s 2d Law
If a hammer
pressing on a nail is
the force, this is the
reaction force.
What is the nail
pressing on the
hammer?
This is the force
needed to cause a 6
kg mass to
2
accelerate 2 m/s .
What is 12 N?
This is the name
for contact forces
that oppose
motion.
What is friction?
If the applied force
is to the east, this is
the direction of the
force of friction.
What is west?
Once an object
starts moving, this
is what happens to
the amount of
friction.
What is decrease?
This is the
direction of the
normal force.
What is
perpendicular to
the surface?
This is the name
for the magnitude
of the force of
gravity.
What is weight?