NEW
Font size
WorksheetsPhysics Quiz
Total questions: 20
Worksheet time: 12mins
The work done by a friction force is:
always negative
always positive
always zero
either positive or negative
Work is equal to which of the following ?
the cross product of force and displacement
the i don't know
the product of force and displacement
the dot product of force and displacement
as defined in the physics bible, work is
working hard
always zero
a scalar quantity
vector from despicable me
what is Newton's second law
F = a x n
F = apple x tree
F = m x a
F = gravity x concussion w/ apple
a newton is equal to which of the following
kilogram nano milli small meter per second
kilogram-meter per second squared
kilogram per mili meter-second
meter per second squared
what is the formula of kinetic energy?
KE = 2 m v
KE = 69
KE = 1/2 m v2
KE = 1/5 m v3
what is the formula for potential energy?
PE = mgh
PE = class
PE = mgkelly
PE = KE
a radian per second is a unit of
pyramid triangular displacement
angular acceleration
triangular momentum.
angular velocity
a machine performs 8 joules of work in 2 seconds, how much power is delivered by the machine?
educated guess
4 watts
99909102938 wats
8 wats
what happens to its frequency when the tension of a string increases?
it will do nothing
the vibration will increase
it starts playing mozart
it breaks
when the frequency of the sound wave is increased what happens to its wavelength?
increases
creased cortez's
goes up a million times
decreases
which unit is used to measure the frequency of sound?
megabytes
hertz
hp
waves
whose principle or law states that each point on a wavefront may be considered a new wave source?
huygen's Principle
snell's Law
youngboi's Law
shertz's Law
the frequency of a wave is 50 Hertz and its wavelength is 25 meters. What is the velocity of this wave?
1567 meters
234 meters
4200 meters
1250 meters
the time needed for a net force of 10 newtons to change the velocity of a 5 kilograms mass by 3 meters/second is:
1.5 seconds
150 seconds
16.7 seconds
6 seconds
two steel balls are at a distance S from one another. As the mass of ONE of the balls is doubled, the gravitational force of attraction between them is
quartered
quadrupled
halved
doubled
as a 10 kilogram mass on the end of a spring passes through its equilibrium position the kinetic energy of the mass is 20 joules. The speed of the mass is:
4.0 meters per second
2.0 meters per second
5.0 meters per second
6.3 meters per second
As a pendulum is raised to higher altitudes its period
absolutely nothing happens
decreases, then remains the same
remains the same
increases
: When a metal becomes a superconductor, there is a tremendous decrease in its
electrical resistance
circumfrence
length
density
a spring with a force constant of 100 Newtons per meter is loaded with a mass of 1.0 kilogram. The period of vibration of this system is
.03 seconds
.31 seconds
.63 seconds
.06 seconds
