Worksheetsscience reviewer
Total questions: 75
Worksheet time: 38mins
(TRUE OR FALSE)
A stationary object has no force acting on it?
TRUE
FALSE
(TRUE OR FALSE)
A less massive object has less inertia than a more massive object.
TRUE
FALSE
(TRUE OR FALSE)
An object that is not accelerating or decelerating has no net forces acting on it.
TRUE
FALSE
energy due to motion is ______ energy
potential
gravitional
kinetic
elastic
Light travels in a ______ line
straight
curve
circular
broken
who formulated the 3 laws of motion?
Thomas Edison
Isaac Newton
Galileo Galilei
Christiaan Huygens
What are the 3 laws of motion?
energy
inertia
acceleration
interaction
property of object to resist any change in its state of motion
interaction
acceleration
inertia
what is this unbalanced force that acts on an object in motion?
work
energy
refraction
friction
what are the four main types of friction
static friction
fluid friction
circular friction
sliding friction
rolling friction
An object acted upon by an unbalanced force will accelerate in the direction of the force.
interaction
inertia
acceleration
is a push or pull
force
work
distance
acceleration
is the amount of matter in an object and it doesn't depend on location
mass
weight
numbers
quantity
what is the acceleration of Earth's surface
9.8 m/s
8.9 m/s²
9.8 m/s²
8.9 m/s
this is a force, like the push of your hand is a force, and is measured in newtons
mass
height
weight
kilograms
unit of force
joule (J)
kilogram (kg)
newtons (N)
m/s²
unit of mass
newton-meters
newton (N)
Kilogram (kg)
m/s²
unit of acceleration
watts
m/s²
Newton (N)
kilograms (kg)
formula of force
M = F/a
A = F/m
F = AM
F = MA
formula of acceleration
A = F/m
F = MA
M = F/a
formula of mass
F = MA
M = F/a
A = F/m
for every action, there is an equal and opposite reaction
inertia
acceleration
interaction
actions acts on one object, while reaction acts on another subject
action-reaction forces
balanced force
two forces act upon the same object
Action - Reaction Forces
Balanced Forces
done ONLY when a constant force applied on an object to move in the same direction as the force is applied. If the object you push moves a distance.
work
force
power
energy
(WORK OR NOT?)
a mouse pushing a piece of cheese with its nose across the floor.
WORK
NO
(WORK OR NOT?)
A mother carries her baby from room to room.
WORK
NO
Formula of work?
W = F/D
W = F x D
W = D x F
W = D/F
unit of distance
millimeter
meters
kilometers
centimeter
unit of work
joule or newton-meters
newton
meters
watts
is the rate at which work is DONE
energy
work
electric
power
formula of power
P = W/t
P = W/T
P = W x T
P = T/w
unit of power
newton
newton-meters
j/s or watts
joules
is commonly used to measure power consumption of electrical device that is named by James Watt
joules
watts
newtons
electricity
is the capacity to do work
power
energy
force
work
SI unit of energy
joule
watts
j/s
newton-meters
a form of energy that a body in motion possess
kinetic energy
potential energy
elastic pe
gravitational energy
the word "kinetic" came from the word ______
konetikos
kineks
kinetikos
kinetiks
is the energy possessed by an object as a result of its POSITION or CONDITION
elastic PE
potential energy
kinetic energy
gravitational energy
two common types of potential energy
energy
gravitational PE
kinetic PE
elastic PE
energy that can be possessed by an object due to its CONDITION
elastic PE
gravitational PE
energy that can be possessed by an object due to its POSITION
elastic PE
gravitational PE
formula of GPE
m x g x h
h x g x m
m x h x g
g x h x m
SI unit of GPE
newton-meters
joule
j/s
watts
you lifted you bags to the top of your table. What can you say about the GPE of your bag?
decrease
increase
zero
lift the same bag on the moon. What happens to the GPE?
decrease
increase
zero
Is a form of energy caused by VIBRATION.
temperature
sound
heat
__________ is a wave that is not capable of transmitting its energy through a vacuum. _________ require a medium in order to transport their energy from one location to another.
mechanical wave
sound medium
sound wave
waves
A substance in which sound waves travel is Medium called a
sound medium
medium
waves
sound
is a means to carry sound
sound medium
wave
sound
medium
Where does sound travel fastest?
solid
liquid
gas
(TRUE OR FALSE)
The HOTTER the medium the faster the sound
travels. Heat just like sound is a form of KE.
TRUE
FALSE
Sound travels at
331 m/s
221 m/s
131 m/s
281 m/s
probably the most important
of our five senses. able to see in dim or bright light
but it cannot see objects when light is
absent.
nose
human eye
ears
mouth
a form of energy. It can be converted into other forms. In plants, light is converted into the chemical energy through the process of photosynthesis which occurs in leaves.
LIGHT
SUN
LAMP
PHOTOSYNTHESIS
main source of
energy on Earth.
sun
light
moon
dark
Great for broadcasting
infrared
radio and tv
microwave
xray
it’s how we see
gamma
visible light
xray
ultraviolet
Think HEAT
infrared
xray
gamma
microwave
Invisible, can cause cancer;
kills germs
gamma
visible light
ultraviolet
xray
treating cancer (radiation
therapy)
radio and tv
xray
ultraviolet
gamma
Sunlight separates into different colors,
called the VISIBLE SPECTRUM, as it passes
through a
visible light
prism
rainbow
sunlight
is the presence of ALL the
colors of the visible spectrum.
while light
black
absorb ALL the colors
and no light is reflected back.
white light
black
in which a prism separates white
light into its component colors.
miracle
phenomenon
prism
light
is the distance between two
successive crests or troughs.
Wavelength ( λ )
Wavelength ( y )
•Wavelength ( Y )
is the number of waves that
passes per second.
frequency
period
wave
quantity
•Is a physical property of matter
which can be measured
qualitatively and quantitatively.
machine
hotness
temperature
coldness
Water freezes 32oF
and boils at 212oF
fahrenheit
celcius
kelvin
Water freezes at 0oC and
boils at 100oC
fahrenheit
celsius
kelvin
is the energy that is transferred from one
body to another due to the difference in the
temperature.
heat
temperature
hotness
sun
materials that transfer energy easily.
conductors
insulators
materials that do not transfer energy
easily.
conductors
insulators
primary mechanism heat transfer for
fluids.
conduction
evaporation
convection
•The energy that travels by
electromagnetic waves (visible
light, microwaves, and infrared
light)
radiation
sunlight
ultraviolet
