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F = ma
Problem Solvers
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I
Inertia
Open-Ended
Fig Newtons
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FINAL JEOPARDY!
F = ma for $100
The magnitude of the force that a car exerts
on a brick wall (after slamming into it) is
3000 Newtons. What is the magnitude of
the force that the brick wall exerts on the
car and which of Newton’s Laws does this
support?
F = ma for $200
Draw a position vs. time graph that shows
a net force of zero. Remember, the slope
of a position vs. time graph is the object’s
velocity.
F = ma for $300
F = ma
$400
Problem
Solvers
$100
Problem Solvers $200
A 20 kg object in outer space is attracted
to a nearby planet with a net force of 200
Newtons. What is the magnitude of the
object’s acceleration?
Problem
Solvers
$300
Problem Solvers $400
I
Inertia $100
What property allows all the dishes to
stay on the table when a magician
rapidly pulls out the table cloth from
underneath them?
I
Inertia $200
As an object’s acceleration
increases, what happens to its
force?
I
Inertia $300
Which ball has a greater inertia when
released from the top of a 10 foot
ladder; a 2N ball or a 3N ball? Be able
to explain why!
I
Inertia $400
When looking at the equation F=ma
and keeping all other factors constant,
what happens to an object’s
acceleration when its mass increases?
Open-Ended $100
When forces acting on an object
are balanced (in equilibrium) what
characteristic of motion is always
zero? Two possible answers!
Open-Ended $200
Which law of Newton’s says that an object
moving east at 2 m/s will continue doing so
until an outside force acts upon it?
Open-Ended $300
Correctly state Newton’s 1st Law of Inertia.
Open-Ended $400
Explain two real life examples of the Law of
Inertia.
Fig Newtons $100
Calculate the frictional force when µ = .15
and the normal force is 105 N.
Fig
Newtons
$200
Fig
Newtons
$300
Fig
Newtons
$400
Final Jeopardy
A soccer ball is kicked at 25 m/s at an angle
of 50° above the horizon. Calculate the
peak height of the parabola.