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- 1. Multiple Choice
Which of the statements is NOT true about the law of acceleration?
It follows the direction of the net force.
It is inversely proportional to the mass of an object.
It is inversely proportional to the magnitude of a net force.
It is directly proportional to the magnitude of a net force.
- 2. Multiple Choice
What is the SI unit of weight?
Kilogram (kg)
Newton (n)
Pound (lb)
Ounce (oz)
- 3. Multiple Choice
What is the equivalent of the net force when the forces acting on an object are balanced?
equal to one
equal to zero
less than zero
greater than zero
- 4. Multiple Choice
Which statement is NOT true about inertia?
It increases as the mass increases.
It decreases as the mass increases.
It is the object’s property to resist motion.
It is present in all objects, whether rest or in motion.
- 5. Multiple Choice
Which of the following is NOT a force? ( you can choose as many as you like )
electromagnetic
weight
mass
friction
- 6. Multiple Choice
In a billiard game, the action force is applied by the cue ball on another ball. In this case, the reaction force is exerted by what?
cue stick
the colored balls
billiards table
hand of the player
- 7. Multiple Choice
A force of 5 N is acting on a 5-kg object. What is the acceleration produced?
1.0 m/s^2
2.5 m/s^2
10.0 m/s^2
25.0 m/s^2
- 8. Multiple Choice
What property does an object’s mass represent?
Speed
Weight
Ineritia
Gravity
- 9. Multiple Choice
Object A is 100 kg, and object B is 50 kg. What does this mean?
Both objects have the same inertia
Object B has less inertia than object A
Object A has less inertia than object B
Inertia cannot be determined in this case
- 10. Multiple Choice
A large force produces large acceleration. What law is being referred by this statement?
Law of Energy
Law of Inertia
Law of Acceleration
- 11. Multiple Choice
Compute the net force acting on a 5-kg object moving at a constant rate of 5 m/s^2.
0 N
1 N
10 N
25 N
- 12. Multiple Choice
How much force does a 20,000-kg jet plane develop to accelerate 1 m/s^2?
200 N
2,000 N
20,000 N
200,000 N
- 13. Multiple Choice
What is the acceleration of a 1000-kg vehicle if its engine gives off a force of 5,000 Newtons?
0.02 m/s^2
0.05 m/s^2
5.0 m/s^2
10.0 m/s^2
- 14. Multiple Choice
____ is defined as the amount matter an object contains and ____ is related to the force of
gravity (related to the gravitational force acting on a mass or object).
Weight, Inertia
Weight, Mass
Inertia, Mass
Mass, Weight
Inertia, Mass
- 15. Multiple Choice
Therefore, using Newton’s second law, the
magnitude of weight of an object is defined as:
F = ma
w = mg
a = Fnet/m
F1 = F2 = G m1 x m2/r^2
Fg = G m1m2/r^2
- 16. Multiple Choice
“For every action of force upon an object, that object in return will exert an equal and opposite
force upon the other object”
Newton's First Law
Newton's Second Law
Newton's Third Law
neither
- 17. Multiple Choice
Two types of Friction (f)
Friction on object in motion and Friction in an inclined plane
Push and Pull
Kinetic and Static
- 18. Multiple Choice
Which of the following is true about power?
Power is how fast work is being done.
Power is how much work is being done.
Power is how much force is being used.
Power is how strong someone or something.
- 19. Multiple Choice
How many Joules of work is done on a box when a force of 50 N pushes it to 5 m towards the right?
10 J
45 J
55 J
250 J
- 20. Multiple Choice
A boy of 500 N of weight climbs a wood step with a length of 8 m. The boy takes 4.0 seconds to get to the end of the steps. What is the power done by the boy in this activity?
500 W
1,000 W
8,000 W
16,000 W
- 21. Multiple Choice
What is kinetic energy?
Energy of an object creates.
Energy stored within an object.
Energy of an object due to its motion.
Energy available to a stationary object.
- 22. Multiple Choice
What is the SI unit of work?
Joules
Watts
Newtons
Meters
- 23. Multiple Choice
A kilowatt-hour is a unit of which of the following?
Power
Work
Energy/Time
Poower/Time
- 24. Multiple Choice
Which of the following bodies has the largest kinetic energy?
mass 3M and speed V
mass 3M and speed 2V
mass M and speed 4V
mass 2M and speed 3V
- 25. Multiple Choice
What is the formula for gravitational potential energy?
PE = mgh
KE = 1⁄2 mv^2
W = Fd
P = W/t
- 26. Multiple Choice
Which of the following has the greatest potential energy?
A car rolling down a hill.
A car parked at the top of a hill.
A person standing on top of a hill.
A bowling ball falling from a 10-story building.
- 27. Multiple Choice
If 10 kg of books is lifted 0.5 m above the table, the tabletop is 1.0 m above the floor. What would be the potential energy of the book if the references land on the floor?
1.15 J
1.47 J
11.5 J
147.0 J
- 28. Multiple Choice
____ cannot travel in vacuum; it always needs a matter to travel.
sound
light
energy
your mom
- 29. Multiple Choice
Intensity is
proportional to the square of the amplitude of a sound wave. This can be measured using a tool called
microscope
oscilloscope
decibel meter
thermometer
- 30. Multiple Choice
The unit of intensity is the?
Joules (J)
Decibel (dB)
Hertz (Hz)
- 31. Multiple Choice
Which part of the electromagnetic spectrum has the shortest wavelength?
infrared
microwave
ultraviolet
visible
- 32. Multiple Choice
Which of the following is arranged according to increasing wavelength?
red, blue, green, yellow
red, yellow, blue, green
yellow, blue, green, red
blue, green, yellow, red
- 33. Multiple Choice
The energy of light is proportional to which of the following?
period
frequency
amplitude
wavelength
- 34. Multiple Choice
Which color of the visible light travels the slowest through a glass prism?
blue
violet
blue
red
orange
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