WorksheetsPHYSCIE REVIEWER
Total questions: 40
Worksheet time: 20mins
Name
Class
Date
1.
In what ways can light’s behavior be described?
a)
Curve and linear motions
b)
. Projectile motion
c)
Waves and particles
d)
Waves and shadows
2.
How does refraction happen when light rays travel in a straight line from air until it encounters another medium like water?
a)
a.The speed of light will be slower as it enters the water, making the angle of refraction (θr) smaller than the angle of incidence (θi).
b)
b. The angle of refraction (θr) will be bigger than the angle of incidence (θi) because light will travel faster as it enters the water.
c)
c. Light rays will refract at a smaller angle because light rays will travel faster in water.
d)
d. Light rays will refract at a bigger angle because light rays will travel slower in water
3.
What is the angle of reflection made by the light that is incident at 10 degrees on the mirror, as shown in the figure below?
a)
A
b)
B
c)
C
d)
D
4.
A light ray passes from water into the air. The angle that the light makes with the normal is 44 degrees. The indices of refraction for both water and air are given in the diagram. What angle does the light ray make with the normal as it approaches the boundary from the water?
a)
A
b)
B
c)
C
d)
D
5.
When illustrating a ray diagram, you can draw the mirrored image by using at least ___.
a)
2 lines
b)
3 lines
c)
4 lines
d)
5 lines
6.
What principle is responsible when we see yellow to red skies in the early morning or late afternoon?
a)
Diffraction
b)
Reflection
c)
Interference
d)
Scattering
7.
Emma is swimming in a pool and notices that her legs appear bent at the water's surface. Which model, the wave model or the particle model, can best explain this phenomenon of apparent bending?
a)
The wave model, as it explains the refraction of light waves as they pass from water to air, causing the apparent bending.
b)
The particle model, as it explains the interaction of photons with the water molecules, causing them to change direction.
c)
Both models are equally valid and explain different aspects of refraction.
d)
None of the models can fully explain the phenomenon of apparent bending
8.
David is looking at himself in a mirror. What model, the wave model or the particle model, can best explain the phenomenon of seeing a reflection?
a)
The wave model, as it explains the reflection of light waves from the smooth surface of the mirror.
b)
The particle model, as it explains the interaction of photons with the atoms in the mirror, causing them to bounce back.
c)
Both models are equally valid and explain different aspects of reflection.
d)
None of the models can fully explain the phenomenon of reflection.
9.
What is the reflection of light?
a)
The bending of light as it passes through a medium with different optical densities.
b)
The change in direction of light when it travels from one medium to another.
c)
The bouncing back of light from a surface without changing its medium.
d)
The interference of light waves results in a cancellation of light intensity
10.
What is the refraction of light?
a)
The bending of light as it passes through a medium with different optical densities.
b)
The change in direction of light when it travels from one medium to another.
c)
The bouncing back of light from a surface without changing its medium.
d)
The interference of light waves results in a cancellation of light intensity.
11.
A converging lens
a)
diverges parallel rays of light
b)
refracts parallel rays of light
c)
is thicker in the center than at the edges
d)
all of the above
12.
An image formed by a single diverging lens
a)
upside down
b)
can be projected on the wall
c)
is virtual
d)
is larger than the object
13.
For reflection of a light ray, the angle of incidence ________________
a)
must be equal to the angle of reflection.
b)
is always less than the angle of reflection.
c)
is always greater than the angle of reflection.
d)
is equal to 90°—the angle of reflection
14.
Which of the following can form an image?
a)
A plane mirror.
b)
A curved mirror.
c)
A lens curved on only one side.
d)
All of the above
15.
A 2.0-m-tall person is standing 2.0 m from a flat vertical mirror staring at her image. What minimum height must the mirror’s reflecting glass have if the person is to see her entire body, from the top of her head to her feet?
a)
0.50 m
b)
1.0 m
c)
1.5 m
d)
2.0 m
16.
A ray of light parallel to the principal axis of a concave mirror is reflected back
a)
through the center of the sphere.
b)
through the focal point.
c)
parallel to the principal axis.
d)
as if it came from the focal point
17.
The shortest mirror in which a person can see its entire body is ....... its height
a)
equal to
b)
one half
c)
It depends on how far away it stands.
18.
Image formed if the object is at F
a)
virtual, upright, magnified
b)
real, inverted, minimized
c)
No image formed
d)
virtual, inverted, magnified
19.
If you are going from a HIGH refractive index to a LOW refractive index, your speed INCREASES, and the angle BENDS _________ THE NORMAL.
a)
away
b)
towards
c)
straight
20.
. If you are going from a LOW refractive index to a HIGH refractive index, your speed DECREASES, and the angle BENDS _________ THE NORMAL
a)
away
b)
towards
c)
straight
21.
The displacement of the particles of the medium is parallel to the direction of wave propagation.
a)
longitudinal wave
b)
transverse wave
c)
surface wave
22.
The displacement of the particles of the medium is perpendicular to the direction of wave propagation.
a)
longitudinal wave
b)
transverse wave
c)
surface wave
23.
For a wave to exist, energy is needed to create a disturbance in an elastic medium.
a)
mechanical wave
b)
electromagnetic wave
c)
surface wave
d)
longitudinal wave
24.
Light is an example of _____________wave.
a)
mechanical wave
b)
electromagnetic wave
c)
surface wave
d)
longitudinal wave
25.
Sound is an example of _____________wave.
a)
mechanical wave
b)
electromagnetic wave
c)
surface wave
d)
transverse wave
26.
What is the shape of the Earth as described by modern astronomy?
a)
ellipsoid
b)
hyperboloid
c)
oblate spheroid
d)
paraloid
27.
Which of the following describes the position of the North Star if you go nearer the equator?
a)
Closer to the horizon
b)
.Farther away from the horizon.
c)
The North Star is fixed wherever you are on the Earth.
d)
It disappears completely.
28.
It is an astronomical model in which the Earth and planets revolve around the Sun
a)
Geocentrism
b)
Heliocentrism
c)
Solstice
d)
Eclipse
29.
According to Aristotle, which falls faster, heavier or lighter object?
a)
heavier object
b)
lighter object
c)
fall at the same time
d)
. no data at all
30.
He is the father of modern science and a mathematician.
a)
Newton
b)
Aristotle
c)
Galileo
d)
Plato
31.
In measuring the motion, it is always observed.
a)
Point of ideas
b)
point of view
c)
point of reference
d)
point of end
32.
What is the symbol applied for free- fall acceleration?
a)
k
b)
m
c)
s
d)
g
33.
What is Galileo's concept of falling objects in his experimentation?
a)
object falling with changing speed
b)
object falling with changing direction
c)
object falling with uniform acceleration
d)
object falling with changing acceleration
34.
Three objects X, Y, and Z, with masses of 6 kg, 8 kg, and 16 kg respectively were dropped simultaneously.Provided that there is no air resistance which object will first reach the ground?
a)
object X
b)
object Y
c)
object Z
d)
Objects X, Y, and Z will fall at the same time
35.
When you slide a toy car across the floor, what force must your push be stronger than?
a)
Support force
b)
Friction force
c)
Gravity
d)
Air resistance
36.
Which force always pulls downward on objects?
a)
Support force
b)
Friction force
c)
Gravity
d)
Air resistance
37.
A change to the motion of an object is caused by
a)
Balanced forces
b)
Unbalanced forces
c)
Acceleration
d)
Velocity
38.
A force that opposes motion between two surfaces that are in contact is called
a)
friction
b)
motion
c)
velocity
d)
acceleration
39.
What is the common unbalanced force acting on an object in motion?
a)
friction
b)
motion
c)
velocity
d)
acceleration
40.
The inertia of an object is related to its
a)
mass and speed
b)
mass and force
c)
mass only
d)
speed only
100 %
