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Agenda
Jeopardy Review Game
• Teams of 4
• Each team will have one
representative at a time
come to the table to play.
• You must wait for the
ENTIRE question to be
read before you can buzz
in.
• If you get the question
correct you get points,
wrong and you lose the
points.
• No talking during answer
session – your team will
lose points if you talk.
Science – Day 5
Objective:
• Today you will review
the concept of forces
and how they affect
the motion of an object
HOMEWORK:
• Chapter 10 TEST –
THURSDAY, December 22nd .
• NO Study Island this week.
• Vector Posters due
Thursday
Notes…
Have out the following:
• Everything off of your tables.
Forces - Jeopardy
Forces
Forces 2
Vocabulary
Formula
Friction
$100
$100
$100
$100
$100
$200
$200
$200
$200
$200
$300
$300
$300
$300
$300
$400
$400
$400
$400
$400
$500
$500
$500
$500
$500
Final Jeopardy
Forces 1 - $100
• The attractive force between all objects in the
universe.
• GRAVITY
Forces 1 - $200
 When
the forces are opposite in direction but equal
in strength.

Balanced Forces
Forces 1 - $300

This is the metric unit of measurement
used for force.

newton (N)
Forces 1 - $400

When the only force acting downward on an
object is gravity, the object is said to be in…

Freefall
Forces 1 - $500

The Universal Law of Gravity states all objects in the
universe are attracted to each other. The amount of the
force depends on these 2 factors:
1. the mass of the object
 2. the distance between them

Forces 2 - $100
 Forces
that are opposite in direction and NOT
equal in strength.

Unbalanced Forces
Forces 2 - $200
 The
total of all the forces involved when
direction is taken into account is called this

Net force
Forces 2 - $300
A
skydiver will reach terminal velocity around what
speed (in m.p.h)

118 m.p.h – 120 m.p.h
Forces 2 - $400
 This
is a physical quantity that describes both
the strength and direction of a force.

vector
Forces 2 - $500

An object on Earth falls off of a cliff. Assume there is no
air resistance. What will the speed of the object be 3
seconds into the fall?

29.4 m/s
Vocabulary - $100
A
push or a pull, or any action that
has the ability to change motion.

force
Vocabulary - $200
 This
measures the amount of
gravitational force on an object?

weight
Vocabulary - $300
This type of friction occurs between
a skateboard and a road.

Rolling friction
Vocabulary - $400
 The
greatest velocity a falling object
reaches while in freefall is called this.

Terminal velocity
Vocabulary - $500
 What
term do we use to refer to a object
that has been thrown.

Projectile
Formula - $100
 If
gravity suddenly doubled then your
weight would double – what happens
to your mass?

Mass would stay the same.
Formula - $200
 What
is the equation used to determine weight if
you are given the mass and gravitational
strength?

W = mg
Formula - $300
 What
is the unit of measurement used
for mass?

Kilogram (kg)
Formula - $400
 What

is the strength of gravity on Earth?
9.8 N/kg
Formula - $500
 What
is the conversion to go from pounds to
Newtons ?

Multiply pounds by 4.448
Friction - $100
 What
1.
 2.
 3.
 4.

are the four types of friction?
static
sliding
rolling
fluid
Friction - $200
 When
you sit in front of a fan you can
feel a breeze caused by this type of
friction.

Fluid Friction
Friction - $300
 The
friction that acts between surfaces that
are not in motion is called this.

Static friction
Friction - $400
 Air
resistance is not the same for all objects, these
two factors can play a role in the amount of air
resistance an object experiences.
Surface area
 Speed (velocity)

Friction - $500
 The
strength of the force of friction present
depends on these 2 factors:
1. how hard the surfaces push together
 2. the types of surface involved.

Final Jeopardy
An object on Saturn falls off a cliff and after 2 seconds
reaches a speed of 20.88 m/s - assume there is no air
resistance. What is the gravity on Saturn?

10.44 N/kg