Transcript AP1 Test Review Jeopardy

Kinematics
Dynamics &
Equilibrium
Rotation
Energy
Waves
Electricity
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What other term could be
used for the magnitude of
the velocity of an object?
Answer: speed
What is the slope of a
displacement versus time
graph equal to?
Answer: velocity
In a projectile problem,
what must you do with
the initial velocity?
Answer: determine its
horizontal and vertical
components (vectors)
What is determined by
taking the area under the
curve for a velocity versus
time graph?
Answer: displacement
What would be the shape of a
displacement versus time
graph for an accelerating
object?
Answer:
parabola
y = kx2
Acceleration is caused by
Answer: a net force
What happens to the force of
attraction between two
masses if the distance
between them is halved?
Answer: it is 4X bigger
What is the normal force on
a 5.0 kg object sitting on a
flat surface?
Answer: 49N (equals weight)
What two things determine
the frictional force on an
object?
Answer: normal force and
coefficient of friction
What must be true for an
object to be in static or
translational equilibrium?
Answer: the sum of all the
forces on the object is zero, the
net force is zero
What term is used for a
force that causes an object
to want to rotate?
Answer: torque
In which direction is the net
force on an object moving in a
circle?
Answer: towards the center.
What must be true for an
object to be in rotational
equilibrium?
Answer: the sum of the
clockwise torques have
to equal the sum of the
counterclockwise
torques
What is the centripetal force of
a 1 kg object moving 2 m/s in a
circle with a diameter of 2 m?
Answer: 4 N
What is the formula for the
rotational inertia of an object
revolving around a point?
Answer: mr2
What equation describes the
conversion of matter into
energy?
Answer:
E = mc2
A compressed spring is an
example of what type of energy?
Answer:
potential
What three things does
gravitational potential energy
depend on?
Answer: mass, g, height
What is the kinetic energy of a
photoelectron dependent on?
Answer: the frequency of the
incident light
Five boxes, each weighing 20 N,
are lifted from the floor to a
shelf 1.2 m off the ground. How
many watts of power are
produced if it takes one minute?
Answer: 2 W
What is the numerical value for
the speed of radio waves
traveling through space?
Answer: 3.00 x 108 m/s
In a given medium, what
happens to the wavelength of a
sound wave if its frequency
doubles?
Answer:
it is halved
What is the term used to
describe a piano string that is
caused to vibrate due to a
singer’s voice?
Answer:
resonance
A sound wave resonates in a
closed tube that is 20 cm long.
What is the wavelength of the
sound?
Answer: 80 cm (l = 4L)
What is the speed of light in
diamond?
Answer:
1.24 x 108 m/s
What is the total resistance of
two 10 ohm resistors connected
in parallel?
Answer:
5 ohms
A 10 ohm and 20 ohm resistor
are connected in series to a
battery. What quantity is the
same in both resistors?
Answer: the current
What is the force between two
charged particles dependent
on?
Answer:
their quantities
of charge and the distance
between them
What is the purpose of a
circuit breaker?
Answer: to prevent excessive
current in a circuit
What is the the total current
in a circuit with three 10 ohm
resistors connected in series
to a 12 V battery?
Answer:
0.4 A
?
Answer: