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WorksheetsFastcheck Make up 6th six weeks
Total questions: 64
Worksheet time: 7hrs 10mins
Name
Class
Date
1.
Why do we see objects as black?
a)
They absorb all the light
b)
They reflect all the light
c)
They absorb some light and reflect
2.
What form of energy travels faster? Light or Sound?
a)
light
b)
sound
3.
What do you get if you combine all of the colors in visible light?
a)
bright light
b)
white light
c)
brilliant light
d)
neon light
4.
Which of these causes the colors in a rainbow to separate?
a)
sunlight passing through raindrops
b)
strong winds
c)
Earth's gravity
d)
different colors of light going at different speeds
5.
Another name for light bending is ....
a)
Reflaction
b)
Absorbing
c)
Refraction
d)
mirror
6.
We can see the color of Beyonce's dress because the light was ....
a)
Reflected
b)
Reflected and Absorbed
c)
Absorbed and Refracted
d)
Absorbed
7.
What kind of object blocks all light?
a)
Opaque
b)
Translucent
c)
Transparent
d)
Reflected
8.
Name the primary colour of light
a)
red, green, blue
b)
red, black, yellow
c)
blue, green, yellow
9.
The retina has
a)
Rod cells that detect primary colours (red, green and blue).
b)
Cone cells that detect primary colours (red, green and blue).
c)
rod cells but no cone cells.
10.
What is refraction?
a)
Where light changes direction
b)
When light bounces off a surface
c)
When light is absorbed
11.
Why does a ruler with one end in the air and one end under water appear bent?
a)
Light moves through air faster than it moves through water.
b)
The light is reflected from the ruler moves in a curved path.
c)
Light moves through water at the same speed as it moves through air.
d)
Light in the air is brighter than light in the water.
12.
You can see through water because ---
a)
it's opaque
b)
it's translucent
c)
it's transparent
d)
it's wet
13.
All of these are transverse waves except
a)
radio waves.
b)
x-ray waves.
c)
ultraviolet waves.
d)
sound waves.
14.
Nearsighted vision is corrected when lenses
a)
reflect light away from the eye
b)
allow light rays to focus on the retina
c)
allow light to fouca slightly past the retina
d)
help light rays relfect regularly
15.
If a candle is placed at 2f in front of a converging lens, the image
a)
will appear at f on the opposite side of the lens
b)
the image will appear at 2f on the opposite side of the lens
c)
the image will appear between f and 2f on the opposite side of the lens
d)
the image will not appear
16.
Convex lenses can produce...
a)
Real, erect images
b)
Virtual, inverted images
c)
Real, inverted images
d)
no images form
17.
A real image...
a)
is produced by virtual rays and can be projected on a screen
b)
is produced by real rays and cannot be projected on a screen
c)
is produced by virtual images and cannot be projected on a screen
d)
is produced by real rays and can be projected on a screen
18.
In order to produce an image with a convex lens that is equal in size to the object, the object distance and the image distance must be.....
a)
half of the focal length.
b)
equal.
c)
twice the focal length.
d)
inverted.
19.
A candle is placed on the principal axis of a convex lens at a distance of 30 cm from the lens. The focal length of the lens is 10 cm. The image formed will be
a)
Real, inverted, and reduced
b)
Real, inverted, and enlarged
c)
Real, upright, and enlarged
d)
Virtual, upright, and enlarged
20.
A converging lens has a focal length of 30 cm. A 5 cm tall candle is placed at a distance of 10 cm in front of the lens. Determine the image distance.
a)
- 45 cm
b)
-30 cm
c)
-15 cm
d)
6 cm
21.
An object is located 0.15 m from a converging lens with focal length 0.10 m.
How far from the lens is the image formed?
How far from the lens is the image formed?
a)
100/3 m
b)
3/10 m
c)
10/3
d)
3/100 m
22.
An object is located 15 m from a converging lens with focal length 10 m.If the object is 2 cm tall, find the image height if the image is located at 30 m.
a)
4 m
b)
-4m
c)
1m
d)
-1m
23.
An object of height 4 cm is placed 10 cm away from a concave lens of focal length 6 cm as shown below.Image is
a)
virtual.inverted
b)
virtual,upright
c)
real,inverted
d)
real,upright
24.
An image that you can see , but does not really exist is called which of the following?
a)
Real Image
b)
Fake Image
c)
Virtual Image
d)
Digital Image
25.
Convex Mirrors produce...
a)
only virtual images
b)
virtual or real images
c)
only real images
d)
inverted images
26.
An incident ray that is parallel to the principal axis...
a)
will reflect parallel to the principal axis
b)
will refract through the focal point
c)
will reflect through the center of curvature
d)
will continue along the same path through the lens
27.
a real image...
a)
is produced by virtual rays and can be projected on a screen
b)
is produced by real rays and cannot be projected on a screen
c)
is produced by virtual images and cannot be projected on a screen
d)
is produced by real rays and can be projected on a screen
28.
The law of reflection states that the angle of reflection is equal to the angle of incidence.
a)
True
b)
False
29.
If an object is placed at f in front of a concave mirror...
a)
the image forms at f
b)
the image forms at 2f
c)
the image forms at 3f
d)
no image forms
30.
What is the index of refraction of a refractive liquid if the angle of incidence in the air is 35 degrees and the angle of refraction is 14 degrees?
a)
1.33
b)
2.21
c)
2.37
d)
1.72
31.
Light has the highest velocity in which medium?
flint glass n=1.70
barium glass n=1.60
crown glass n=1.523
water n=1.33
diamond n=2.45
flint glass n=1.70
barium glass n=1.60
crown glass n=1.523
water n=1.33
diamond n=2.45
a)
diamond
b)
water
c)
flint glass
d)
barium glass
32.
If a candle is placed at 2f in front of a converging lens, the image
a)
will appear at f on the opposite side of the lens
b)
the image will appear at 2f on the opposite side of the lens
c)
the image will appear between f and 2f on the opposite side of the lens
d)
the image will not appear
33.
An erect image which is smaller than the object forms...
a)
behind a concave mirror
b)
in front of a convex lens
c)
behind a convex mirror
d)
in front of a concave mirror
34.
An image with a magnification of -1/2...
a)
is produced behind a convex mirror
b)
is produced by a convex lens on the side opposite the object
c)
is produced by a concave lens on the same side as the object
d)
is produced behind a concave mirror
35.
An image with magnification of M = -3...
a)
is formed by a convex mirror, beyond 3f and it is virtual
b)
is formed by a concave lens, between f and 2f and it is real
c)
is formed by a convex lens between f and 2f and it is virtual
d)
is formed by a concave mirror beyond 3f and it is real
36.
In a series circuit, three loads have a potential difference of 8.0 V, 12.0 V and 3.4 V respectively. The total current in the circuit is 3.00 amps. What is the amount of current through the second load?
a)
21.4 A
b)
3.0 A
c)
4.0 A
d)
7.6 A
37.
A flashlight bulb is rated at 0.90 W. If the electric potential drop across the light bulb is 3.0 V, how much current goes through it?
a)
30 A
b)
3.3 A
c)
2.7 A
d)
0.3 A
38.
A car dashboard panel bulb has a resistance of 33 Ω when it is placed across a 12 V battery. What is the current through the circuit?
a)
0.36 A
b)
2.8 A
c)
3.96 A
d)
396 A
39.
A lamp uses 15 W of power when it is connected across 25 V. What is the current through the lamp?
a)
0/60 A
b)
1.67 A
c)
9390 A
d)
93800 A
40.
In a simple circuit, a voltage of 5.0 V is applied across a resistance of 10.0 Ω. What is the power dissipated in the resistor?
a)
0.50 W
b)
5.0 W
c)
2.5 W
d)
50 W
41.
Three resistors of 10.0 Ω, 20.0 Ω and 25 Ω are connected in parallel across a 100 Ω battery. What is the equivalent resistance of the circuit and the current flowing through the 10 Ω resistor?
a)
0.19 Ω, 4 A
b)
6.67 Ω, 5 A
c)
5.26 Ω, 10 A
d)
55.0 Ω, 20 A
42.
A 20.0 Ω and a 40 Ω resistor are connected in series across a battery. If the current is 2.00 A, what is the voltage of the battery?
a)
30.0 V
b)
60.0 V
c)
80.0 V
d)
120 V
43.
A 2.00 Ω and 12.0 Ω resistor are connected in parallel across a 20.0 V battery. What is the current through the 2.0 Ω resistor?
a)
1.40 A
b)
1.67 A
c)
11.6 A
d)
10.0 A
44.
Three resistors, 4.0 Ω, 8.0 Ω and 10.0 Ω respectively, are connected in series across an 11 V battery. The total potential difference across the 4.0 Ω and 8.0 Ω resistors is:
a)
2.0 V
b)
4.0 V
c)
6.0 V
d)
11 V
45.
A/An _________ is used to measure the potential difference across a portion of a circuit.
a)
ammeter
b)
battery
c)
resistor
d)
voltmeter
46.
Which device measures the current in a circuit?
a)
ammeter
b)
amplifier
c)
voltmeter
d)
rheostat
47.
Two resistors of 5 Ω and 7 Ω are connected in series across a 24 V battery.
What is the current in the circuit?
What is the current in the circuit?
a)
2 A, 2 A
b)
4 A, 4 A
c)
2 A, 4 A
d)
4 A, 2 A
48.
When a plastic rod is rubbed with wool, why does the wool acquire a positive charge?
a)
Protons are transferred from the rod to the wool.
b)
Protons are transferred from the wool to the rod.
c)
Electrons are transferred from the rod to the wool.
d)
Electrons are transferred from the wool to the rod.
49.
Which method of charging an object leaves both objects with the same charge?
a)
Friction
b)
Conduction
c)
Induction
d)
Electroscope
50.
When a glass rod is rubbed with silk and the glass rod becomes positively charged, what happens to the electrons?
a)
They are removed from the rod.
b)
They are added to the rod.
51.
What is the unit of electric charge?
a)
Volt
b)
Amp
c)
Coulomb
d)
Ohm
52.
If you double the distance away from a charged particle, the total electric field of that particle:
a)
is 1/2.
b)
is 1/4.
c)
is doubled.
d)
stays the same.
53.
How is the electric force between two charges affected when both of the charges are doubled?
a)
Four times as much.
b)
Two times as much.
c)
Half as much.
d)
One-quarter as much.
54.
How is the electric force between two charges affected when the distance between the charges is halved?
a)
Four times as much.
b)
Two times as much.
c)
Half as much.
d)
One-quarter as much.
55.
A positive charge and a negative charge held near each other are released. As they move, the force on each particle:
a)
increases.
b)
stays the same.
c)
decreases.
56.
What doe you call the process of charging a conductor by bringing it near another charged object and grounding it?
a)
induction
b)
polarization
c)
neutralization
d)
conduction
57.
What direction are the electric field lines around a proton?
a)
towards the charge
b)
away from the charge
58.
A negatively charged rod is brought near a metal can that rests on a wood table. You touch the opposite side of the can momentarily with your finger. The can is then
a)
positively charged.
b)
negatively charged.
c)
charged the same as it was.
d)
uncharged.
59.
In the Figure, starting from the left what magnetic poles are shown on the two bar magnets?
a)
south, south, north, north
b)
south, north, south, north
c)
north, south, north, south
d)
north, north, south, south
60.
Which of the following are two effects of Earth’s magnetic field?
a)
A. compass points to geographic north, auroras seen at both poles
b)
B. compass points to magnetic north, auroras seen at both poles
c)
C. compass points to geographic south, auroras seen at the equator
d)
D. compass points to geographic north, auroras seen at the equator
61.
Why does each electron in an atom behave like a tiny magnet?
a)
The spinning of an electron produces a magnetic field.
b)
The spinning of an proton produces a magnetic field.
62.
Magnetic Field lines....
a)
Go out of the N side and into the S side
b)
Go out of the S side and into the N side
c)
Go out of the N side AND out of the S side
d)
Go into the N side AND go into the S side
63.
Magnets strongly attract all metals.
a)
True
b)
False
64.
Magnetic field lines that curve away from each other show ___.
a)
attraction
b)
repulsion
c)
compass
d)
domains
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