1) Robert Milikan is accredited with
2) Georg Simon Ohm is accredited with
3) Snell is accredited with
4) Michael Faraday is accredited with
5) A light ray travelling parallel to the principle axis of
a concave mirror hits the mirror. It
will be
6) A ray of light travels from air toward glass at an
oblique angle. At the interface, the
ray
7) Pure yellow light falls upon a sheet of white paper
ruled with blue lines. As a result
8) The three primary light colours are
9) The unit of electrical potential difference is the
10) If the resistance of an electrical circuit were halved and
the voltage applied to the circuit doubled, the current in the circuit would
11) Which one of the following instruments can be used to read
directly the potential difference across a resistor in an electrical circuit?
12) What is the effect when a second identical resistor is
added in series in a circuit containing one resistor and a dry cell?
13) A single straight conductor carries electrons out of the plane
of the paper toward you as shown.
What
direction and shape are the magnetic field lines?
14) The diagram
illustrates a straight wire conductor situated between the poles of a permanent
magnet. The poles of the magnet are in
the plane of the page, and the wire is perpendicular to the plane of the
page. The wire is carrying an electron
flow away from you into the plane of the page as indicated by the cross.
The
direction of the magnetic force on the wire is
15) A step-down transformer is used to change
4 1) An object is
6cm from the lens, and its image is 12 cm from the lens. If the height of the
image is 4cm, what was the height of the object?
3 2) List the three factors that affect the strength
of the magnetic field of a coil.
3 3) If the index of refraction for Ruby is 1.62,
what is the critical angle?
3 4) Why is the sky blue?
2 5) Phuc
runs at 4m/s, Jeff accelerates at 2m/s2. How long before Jeff is
going faster than Phuc?
4 6) The unit of electric potential is the
VOLT. This unit is equal to a
JOULE/COULOMB. A JOULE is equal to a
NEWTON·METER. A NEWTON is equal to a
kg·m/s2. Thus a VOLT equals
a kg·m2/C·s2.
Using only "kg", "m" and "s" with
appropriate exponents, determine the fundamental unit dimensions of the
following quantities.
acceleration ___________________
force ___________________
energy ___________________
power ___________________
5 7)
Light travels at 3.00 x 108.
The distance that light travels in one year is a light year. If a star 5 light
years away explodes, how long (time) before we see the explosion?
2 8)
Heather runs at 4m/s,
Michelle accelerates at 2m/s2. How long before Michelle has gone
farther than Heather?
1) The following is a v-t graph of two cars, A and
B. At t=0 s, A and B pass each other.
i) Determine the acceleration of B during the
final 3 s.
3
ii) Find the distance between A and B at t=5 s.
4
iii) Find the average velocity of A in the first 5
s.
2
iv) Find the instantaneous acceleration of A at t=7
s.
3
2) Todd and Keith, pretending that
they are playing in the jungle, suspend a rope from an overhead tree limb. Keith, of mass 70 kg and running at 7 m/s,
grabs the rope and swings off the level ground. Calculate:
i) the maximum height reached by Keith.
4
ii) how fast Todd (mass=50 kg) has to run to reach
the same height as Keith.
5
iii) the amount of work Todd does if he climbs the
4.0 m tree in 2.5 minutes.
3
3) a) Shalonda throws a ball vertically upward into
the air with an initial velocity of 25 m/s.
Calculate:
i) the time it takes the ball to reach its maximum
height.
3
ii) how high the ball will travel.
3
b) A subway train starts
from rest at a station and accelerates at the rate of 1.5 m/s2 for
15s. It runs at a constant speed for 40
s, and then decelerates at 2.5 m/s2 until it stops at the next
station. Find the total distance
between the stations.
6
4) a) A telescope has two lenses, in a row that
produce an image of what is looked at. If the lenses are 40cm apart, and the
first lens has a focal length of 1.1cm, and the second has a focal length of
39cm, what is the relative magnification of the telescope?
8
b) Light travels from crown
glass, index of refraction 1.52 into plexiglass, index of refraction 1.54. What
is the critical angle?
4
5) a) Construct a diagram of on object
that will produced constant motion using both static and current electricity in
its design.
6
b) Give three examples of
how static electricity can be used constructively with brief details?
6
6) a) Using a scale ray diagram, locate the position
of the image of a candle 2 cm high, placed 7 cm in front of a converging lens
of focal length 8 cm. Identify the four
(4) properties of the image.
7
Attitude _______________ Type
_______________
Location _______________ Size
_______________
b) A lamp 18 cm high is
placed 53 cm in front of a diverging lens of focal length 43 cm. Find the image position and height
of the image using the lens and
magnification equations.
5
7) a) Locate the image in the following diagram,
given the object location as shown.
Determine the image height.
4
b) A ray of light
travelling in air, strikes a piece of flint glass with an angle of incidence of
32o. Calculate the angle of refraction.
3
c) An
object 11 cm high is placed 63 cm in front of a converging lens of focal length
22 cm. Using the lens and magnification
equations, determine the image position and height.
5
8) a) Solve the circuit shown below for the
indicated quantities.
8
b) Calculate the cost of
operating a 2.0 kW heater on a 240 V circuit for 15 minutes, if electrical
energy costs 10˘/kW·h.
4
9)
A bat is flying a 10m/s and emits a sound wave ( v = 344m/s). The echo from the
sound wave produced by a moth sitting on a branch nearby reaches the bat’s ears
in 0.1s. How far is the bat from the moth when it hears the echo?
12
10) a) A transformer has 90 turns in the primary and
480 turns in the secondary circuit. The
secondary circuit has 5A at 850 V.
i) Find the voltage in the primary circuit.
4
ii) Find the current in the primary circuit.
4
b) Complete the diagrams
below, showing the poles, current direction, or force.
3
c) Draw arrows to indicate
the current direction in the following diagram.
1