Transcript Motion In Review

Motion In Review
Newton’s Toy Box Activity 1
Vocabulary
Force
Inertia
Newton’s first Law of Motion
Velocity
What is a Force
 Force is a Push or Pull
 Examples of Force:
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Gravity
Friction
Electricity
Magnatism
Gravity
• Gravity is the force
that pulls us
towards the earth.
• It gives everything a
weight
• If gravity didn’t exist
we would float
around like
astronauts in space
Friction
 What do you notice about
the soles of your shoes?
 There are patterns of ridges
which are designed to stop
you from slipping.
 A force called friction is
created when 2 or more
surfaces rub together.
 The greater the friction the
more the 2 surfaces grip.
Sir Isaac Newton
 He discovered the principles that explain how
things move on Earth’s surface and in space.
Begin Activity
Do steps 1-3
Stop after completing step 3
What is Velocity
 Velocity is speed in a particular direction.
 Velocity includes both speed and direction.
 A moving object that changes speed but
continues moving in the same direction has
changed it’s velocity.
 A moving object that changes direction but
retains the same speed has changed its
velocity.
Complete the Activity
 Use your own words in applying Newton’s
first law of motion.
Newton’s first law of Motion
 An object will remain at rest or in uniform
motion unless acted on by an unbalanced
force.
Inertia
 The object’s tendency to remain at rest or in
motion is called inertia.
 What one activity have you recently
performed that illustrates the inertia principle.