Transcript physics jeopardy unit 2a

Physics Unit 2 Jeopardy
Conversions
Newton’s 1st
Law
Calculation
Acceleration
F = ma
Lab stuff
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1000
How many milligrams are in a gram?
1600
How many meters are in a mile?
1,2
0.276 kg
How many kilograms is 276
grams?
1,3
0.694 m/s
Convert 2.5 km/hr into m/s
1,4
0.0135 meters
How many meters are in
13,500 micrometers?
The Law of Inertia
What is Newton’s 1st Law also
called?
1,4
An object in motion will stay in motion and an object at
rest will stay at rest unless acted on by an unbalanced (or
outside) force.
What is Newton’s 1st law? (the whole
thing)
2,1
The net force
What do you call the sum of all
the forces acting on an object?
2,2
Objects that are at rest have inertia, but not momentum
What’s the difference between momentum
and inertia?
2,3
The net force is 5 N to the right and the box will slow
down, stop, then change direction and start to speed up
to the right.
If an object is moving to the left at 3
m/s and a 10 N force pushes it to the
right at the same time a 5 N force
pushes it to the left, what is the net
force and what happens to the
object?
2,4
Meters per second squared (m/s^2)
What are the units of
acceleration?
1,4
a = v(final) – v(initial)
t
What is the equation for acceleration
that uses velocity?
3,1
5 m/s^2
If something is at rest then
speeds up to 10 m/s in 2
seconds, what is its
acceleration?
3,2
50 m/s^2
What is the acceleration of a 500 gram object that
experiences a force of 25 N?
3,3
- 8.89 m/s^2
If a car goes from 100 miles per hour to 60
miles per hour (because they saw a cop) in 2
seconds, what was the car’s acceleration?
Newtons
What are the units of force? (the
short one)
Kg * m
S^2
What units are Newton’s made of?
4,1
7.5 N
What force is needed to
accelerate a 750 gram object at 10
m/s^2?
4,2
F = ma
m = F/a
a = F/m
Rewrite Newton’s 2nd law three times, each one
solved for a different variable.
4,3
740,740 N
The brakes on a 50,000 kilogram
Ferrari slow the car from 100 miles
per hour to a stop in 3 seconds. What
is the force provided by the brakes?
1 cm
What was the width of the car’s
flag?
1,4
The width of the flag (1cm) divided by the time it
took to pass through the photogate.
How do you calculate velocity of
the car going through one
photogate?
5,1
Divide the distance between the two
photogates by the time it took to get from
photogate A to photogate B
How do you calculate the
velocity of the car as it
travels between two
photogates?
6 m/s
If a 3 cm wide ball takes 0.005 seconds to pass
through photogate A, what was it’s velocity in m/s?
5,3
1N
If a 2 cm wide ball (50 grams) had a velocity
of 5 m/s at photogate A, 7 m/s at photogate
B, and the time between the photogates was
0.10 seconds, what was the force on the
ball?