Transcript Grade 10 Objective 5

Grade 10
Objective 5
1
What is the average speed of a jet plane that flies 8000
kilometers in 8.5 hours?
A
B
C
D
471 km/h
941 km/h
8009 km/h
68,000 km/h
2
How much force is needed to accelerate a 1,300 kg car at a rate
of 1.5 m/s2?
F 867 N
G 1,950 N
H 8,493 N
J 16,562 N
3
A car traveled 150 km in 2.5 hours. What was its average speed
in km per hour? Record and bubble in your answer on the answer
document.
4
The diagram represents the total travel of a teacher on a
Saturday. Which part of the trip is made at the greatest average
speed?
F Q
G R
H S
J T
5
Which bike rider has the greatest momentum?
A
B
C
D
A 40 kg person riding at 45 km/h
A 50 kg person riding at 35 km/h
A 60 kg person riding at 25 km/h
A 70 kg person riding at 15 km/h
6
An ant crawled from Point A to Point B in 4.0 seconds. To the
nearest tenth, what was the ant’s speed in centimeters per
second?
7
A driver traveled 270 km in 3 hours. The driver’s destination was
still 150 km away. What was the driver’s average speed at this
point?
A
B
C
D
40 km/h
90 km/h
140 km/h
420 km/h
8
A person pushes a large box across a level floor by applying a
horizontal force of 200 N. If the person pushes the box a distance of
5 meters in 10 seconds, how much work does the person do on the
box?
A
B
C
D
2000 joules
1000 joules
400 joules
100 joules
9
Which graph can represent an object at rest?
F
H
G
J
10
Safety restraints in cars help prevent passenger injuries that would
otherwise occur as a result of passengers remaining in motion
during a car’s abrupt stop. Which of these laws predicts that an
unrestrained moving body will continue to move?
A
B
C
D
Law of inertia
Law of reflection
Law of universal gravitation
Law of conservation of momentum
Toy Car Speed
11
Trial
Time
(s)
1
5
2
7
3
4
4
7
The table shows times required for the same toy car to travel 10 m
across an identical section of a floor after it is pushed. The
difference in times was probably caused by differences in —
A
B
C
D
force exerted
surface friction
air resistance
car mass
12
The illustration above shows a student about to throw a ball while standing on a
skateboard. Which illustration below correctly shows the skateboard’s direction
of motion after the student releases the ball?
A
B
C
D
13
What would be the wavelength in centimeters of this wave if its
frequency were doubled?
14
At 0°C sound travels through air at a speed of 330 m/s. If a sound
wave is produced with a wavelength of 0.10 m, what is the wave’s
frequency?
F 0.0033 Hz
G 33 Hz
H 330 Hz
J 3300 Hz
15
Which illustration best demonstrates compression waves?
16
Which label on the model represents a wavelength?
F
G
H
J
Q
R
S
T
17
What type of energy is stored in a piece of firewood?
A
B
C
D
Geothermal energy
Kinetic energy
Chemical energy
Radiant energy
18
Fuel cells powered by plankton from the seabed can be used to
operate instruments that monitor ocean currents and water
temperature. These fuel cells get their energy by converting —
F chemical energy to electrical energy
G electrical energy to mechanical energy
H hydroelectric energy to geothermal energy
J mechanical energy to chemical energy
19
Which of these best explains why skin is warmed by radiant
energy?
A
B
C
D
Sunlight absorbed by the skin increases the skin’s thermal
energy.
High-frequency radiant energy is composed of waves with
short wavelengths.
Uneven heating produces convection currents within the
skin.
Atoms with loosely held electrons transmit heat by
conduction.
20
of —
The primary way liquids and gases transmit heat is by the
F reflection
G conduction
H radiation
J convection
process
21
A man who was sleeping wakes up because he hears the smoke
alarm go off in his house. Before opening the bedroom door, the
man feels the door to see whether it is warm. He is assuming
that heat would be transferred through the door by —
A
B
C
D
conduction
convection
radiation
compression
22
In winter the air just above the top bunk of a bunk bed is warmer
than the air just above the bottom bunk because warm air rises.
Which of the following describes the method of heating that causes
this difference in temperature?
F
G
H
J
Radiation from the room
Heat transfer through the walls
Convection currents in the room
Heat conduction through the bed
23
Which of these is the best example of heat transfer by radiation?
A
B
C
D
A satellite is warmed by sunlight.
Butter melts on warm bread.
A ceiling fan cools a warm room.
Puddles of water cool a warm tile floor.
24
The circuit above can be made into a closed-series circuit that
will light both bulbs by touching the loose wire to Point —
A
B
C
D
Q
R
S
U
25
Which switch, if opened, will cause the lightbulb to stop glowing?
F Q
G R
H S
J T
26
What is the current in a copper wire that has a resistance of 2 ohms
and is connected to a 9-volt electrical source?
F 0.22 amp
G 4.5 amps
H 11.0 amps
J 18.0 amps
27
How much current is flowing through this circuit?
A
B
C
D
0.32 A
3.1 A
4.0 A
12.5 A
28
Which circuit is built so that if one lightbulb goes out, the other three lightbulbs will
continue to glow?
29
In this circuit, how much current flows through the lightbulb?
A
B
C
D
0.75 amp
1.50 amps
2.0 amps
3.0 amps
30
The bulb will light when a current supplied by at least one 1.5 V battery is
available. Which circuit will fail to light the bulb?
A
C
B
D
Grade 10
Objective 5
Answer Key
Grade 10 Objective 5 Answer Key
Question
Correct
Answer
Objective
Measured
Student
Expectation
1
B
5
IPC 4A
2004 Info Booklet – 22
2
G
5
IPC 4A
2003 TAKS - 8
3
60
5
IPC 4A
2003 TAKS - 20
4
H
5
IPC 4A
2003 TAKS - 40
5
A
5
IPC 4A
2004 TAKS - 3
6
1.4
5
IPC 4A
2004 TAKS - 20
7
B
5
IPC 4A
2006 TAKS – 3
8
B
5
IPC 4A
2006 TAKS – 7
9
G
5
IPC 4A
2006 TAKS – 38
10
A
5
IPC 4B
2004 Info Booklet – 23
11
A
5
IPC 4B
2003 TAKS – 13
12
D
5
IPC 4B
2004 TAKS – 1
13
.625
5
IPC 5A
2004 Info Booklet – 25
14
J
5
IPC 5A
2003 TAKS – 38
15
B
5
IPC 5A
2004 TAKS - 37
Source - item number
Grade 10 Objective 5 Answer Key
Question
Correct
Answer
Objective
Measured
Student
Expectation
16
F
5
IPC 5A
2006 TAKS – 10
17
C
5
IPC 6A
2002 Info Booklet – 14
18
F
5
IPC 6A
2004 TAKS – 16
19
A
5
IPC 6B
2004 Info Booklet – 24
20
J
5
IPC 6B
2003 TAKS – 2
21
A
5
IPC 6B
2004 TAKS – 33
22
H
5
IPC 6B
2006 TAKS – 14
23
A
5
IPC 6B
2006 TAKS – 19
24
B
5
IPC 6F
2004 Info Booklet – 21
25
F
5
IPC 6F
2003 TAKS – 32
26
G
5
IPC 6F
2003 TAKS – 46
27
A
5
IPC 6F
2004 TAKS – 47
28
J
5
IPC 6F
2004 TAKS – 54
29
A
5
IPC 6F
2006 TAKS – 35
30
C
5
IPC 6F
2006 TAKS - 51
Source - item number