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WorksheetsCheckpoint Physics Review
Total questions: 50
Worksheet time: 27mins
Sound is produced from _________ ?
movement
vibration of wave
vibration of particles
particles moving randomly
Sound can travel through which medium?
solid
vacuum
liquid
gas
Amplitude shows ______ of sound.
the pitch
the volume
Amplitude tells ________ ?
how big the vibration is
how frequent the vibration is
Amplitude is measured in _______
decibel (dB)
herzt (Hz)
Frequency shows ______ of sound.
the pitch
the volume
Frequency tells ________ ?
how big the vibration is
how frequent the vibration is
Frequency is measured in _______
decibel (dB)
herzt (Hz)
Longer things vibrate less. (T/F?)
Thicker things vibrate more (T/F?)
T _ F
F _ T
T _ T
F _ F
The range of hearing for human is: _________ Hz - __________ Hz (Fill in the blank, exactly like this form: 50 - 10000)
(a)
Sound with frequency <20Hz are ________
infrasound
ultrasound
Sound with frequency >20 000Hz are ________
infrasound
ultrasound
Sounds with longer wavelength have ___________
higher energy
constant energy
medium energy
lower energy
Sounds with longer wavelength have ___________
higher frequency
constant frequency
medium frequency
lower frequency
_________ formed from the remains of sea creatures
oil and natural gas
coal
Fossil fuels are ________ to release energy
reacted
burnt
heated
Magnetic field lines start from the ________ pole and end up at the ____________ pole.
west _ east
south _ north
north _ south
south _ south
The magnetic force is strongest where the magnetic field lines are closest. The magnet force is strongest at _______
the north pole
the ends of the magnet
the north pole
in the middle
Magnetic materials are _______
nickel
iron, steel
cobalt
copper, gold
metal
Which methods make the electromagnet stronger?
Add an iron core inside the coil
Make the coil bigger
Make more turns to the coil
Increase the electric current
What are inside the cochlea?
liquid
3 small bones
nerve cells
eardrum
Which sound wave has the highest pitch?
1
2
3
4
Which wave has the highest amplitude?
1
2
3
1&3
2&3
The Sun appears to move from East to West because _____
The Earth spins from East to West
The Earth spins from West to East
The Earth spins on its axi
Some stars form patterns called
galaxies
aurora borealis
constellation
big bang
We see different stars at different time of the year because ______________
the earth orbits around the sun
the earth spins on its axis
the earth spins from West to East
The stars orbit around the Sun
Planets are held in its orbit because of _____________
the Sun's gravity
its gravity
Solar System
Inner planets are
warm and cold
made of rock and warm
big and cold
made from frozen carbon dioxide and other gases
Gas giants/Outer planets are
warm and cold
made of rock and warm
big and cold
made from frozen carbon dioxide and other gases
Geocentric model have ________
the Sun in the centre
The earth in the centre
The planets in the centre
When the Moon is in the same direction as the Sun, its dark side faces Earth and that’s when we see _________
a new moon
a full moon
waxing crescent
first quarter
When the Moon is in the opposite direction to the Sun, its sunlit side faces Earth and we see _________
a new moon
a full moon
waxing crescent
first quarter
The universe is born through a __________
galaxies
aurora borealis
constellation
big bang
Current is measured in __________ using __________
volt _ voltmeter
volt _ ammeter
ampere _ ammeter
ampere _ voltmeter
Voltage is measured in __________ using __________
volt _ voltmeter
volt _ ammeter
ampere _ ammeter
ampere _ voltmeter
Unconventional current is a current where electrons flow from the _______ to the __________ end of the battery.
positive _ negative
negative _ positive
Which are the characteristics of parallel circuits?
components connect side-by-side
components connect end-to-end
The current divides in the circuit
The current is the same everywhere in the circuit
Which are the characteristics of series circuits?
components connect side-by-side
components connect end-to-end
The current divides in the circuit
The current is the same everywhere in the circuit
A coulombmeter tells ______
the strength of the current
the voltage
whether the object has positive or negative charge
Charged objects can attract uncharged objects.
True
False
variable resistor
resistor
fuse
battery
buzzer
ammeter
light bulb
resistor
variable resistor
resistor
fuse
battery
reflection
refraction
Radiation is
A
B
C
When an object blocks light, you get
an eclipse
a surprise
a shadow
darkness
Which surface would reflect light the best?
light coloured and smooth
dark coloured and smooth
dark coloured and rough
What is NOT a renewable energy source?
coal
wind
solar
water
