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WorksheetsCheckpoint 1 Physics
Total questions: 25
Worksheet time: 13mins
How is this illusion working?
the 11 dots appear but stay constantly in one place
the 12 dots appear and move with eyes
there are 12 dots, i can see them all
i can see the design only
what is meant by 10^-6 m
mm
μm
nm
Mm
What is 1 g in kg?
0.000 001 kg
0.001 kg
1000 kg
0.01 kg
estimate the average time taken for a parachute to fall a distance of 3 m
1 s
5 s
15 s
20 s
Which of the following adjustments doesnt increase accuracy?
place ruler and measure
reset a stopwatch before repeating a timing
make sure balance is at zero before you weigh
keep your eye perpendicular to the reading/pointer
Hotness/coldness of a substance is
celsius
temperature
bulb
expansion
which is the type of force in pulling of strings?
friction
tension
normal force
upthrust
Which of the following is the wrong option for "what a force does"?
change shape
change speed & direction
change shape
change mass
Static friction is stronger than sliding friction. True or False?
True
False
What is the resultant force of the object in the picture?
10 N to right
20 N to right
20 N to left
30 N to left
less water on the road reduces
engine force
frictional force
air drag
What is the force that reduces a skydivers velocity?
weight
air resistance
What is the elastic limit
A
B
C
D
Ability to do work
Force
Energy
speed
velocity
velocity is speed with direction. True or False
True
False
What is the wasted form of energy in a heater?
elastic
heat
elecrical
chemical
In a energy transfer diagram, the box has
input energy
output energy
converter/transducer
This is sankey diagram for car engine, what is its efficiency?
10%
20%
40%
60%
What is the energy transfer in turbines?
Kinetic to electrical
chemical to kinetic
kinetic to chemical
electrical to chemical
What are equinoxes
equal days and equal nights
unequal days and nights
What causes seasons?
tilt of the earths axis
distance of earth from sun
Who found uranus?
Galileo
Herschel
Newton
Brahe
Which of the following emit light?
moon
earth
planets
sun
Which is the closest galaxy to milkyway?
alpha centuri
andromeda
Where do most comets originate from?
oort cloud
asteriod belt
