PHYSICS 150 Final Exam Questions with Correct
Answers.
If a span is 2 hands, and a pace is 6 hands, how many spans are in a pace
3
Which off the following are derived units?
Density
Distance
Time
Volume
Acceleration
Density, volume, and acceleration
True or False
"Hand", "Cubit", and "Pace" are all standardized units.
False
Acceleration is defined to be
Change in speed over time
Describe how you might find the volume of an irregularly shaped solid (give details)?
You would find the volume of an irregular shaped object by water displacement. Pour water into
measuring cup and make sure there is space with markings above the water line so that you can
measure the change of volume when you place an object inside and record your initial levels.
,Slowly lower your object into the water and record the new level. Then calculate the difference
between the two levels to find the volume.
10 inches would equal
25.4 cm
A cube of length = 2 cm, height = 4 cm, and width = 3 cm, would have a volume of
24 cm^3
What is the acceleration of an object when its velocity isn't changing?
If the velocity isn't changing, the acceleration isn't changing which means it would be 0.
An object with a density of 3 g/cm^3 and a volume of 10 cm^3 will have a mass of _____ g
30
The weight of something equals its mass times ...
the gravitational acceleration
A pendulum that does 50 swings in 25 seconds will have a period of ______ seconds
0.5
State one of Newton's 3 laws of motion. You can use the short version if you like.
objects have inertia, an unbalanced force produces a proportional acceleration. a= F/m or F= ma,
and action-reaction
Work is ________ times distance
force
, If a 10N force lifts a mass 0.5 meters, the change in gravitational potential energy is _____
J.
5
If a 2kg mass is traveling 10 m/s, the mass has a kinetic energy of...
100 J
Why do handicap accessible ramps tend to be long and low angle rather than short and
steep?
Handicap accessible ramps tend to be long and low angle rather than short and steep because less
force is required to go up a long, low angled ramp than a short, steep one.
Higher mass and higher drop height result in _______ gravitational potential energy.
more
To find the total amount of work needed to climb a flight of stairs, you would need to
multiply which of the following ... (select all that apply).
number of steps
your acceleration
height of each step
your weight
the amount of time it took
number of steps, height of each step, and your weight
Describe one of the classes of levers that we discussed in class.
Answers.
If a span is 2 hands, and a pace is 6 hands, how many spans are in a pace
3
Which off the following are derived units?
Density
Distance
Time
Volume
Acceleration
Density, volume, and acceleration
True or False
"Hand", "Cubit", and "Pace" are all standardized units.
False
Acceleration is defined to be
Change in speed over time
Describe how you might find the volume of an irregularly shaped solid (give details)?
You would find the volume of an irregular shaped object by water displacement. Pour water into
measuring cup and make sure there is space with markings above the water line so that you can
measure the change of volume when you place an object inside and record your initial levels.
,Slowly lower your object into the water and record the new level. Then calculate the difference
between the two levels to find the volume.
10 inches would equal
25.4 cm
A cube of length = 2 cm, height = 4 cm, and width = 3 cm, would have a volume of
24 cm^3
What is the acceleration of an object when its velocity isn't changing?
If the velocity isn't changing, the acceleration isn't changing which means it would be 0.
An object with a density of 3 g/cm^3 and a volume of 10 cm^3 will have a mass of _____ g
30
The weight of something equals its mass times ...
the gravitational acceleration
A pendulum that does 50 swings in 25 seconds will have a period of ______ seconds
0.5
State one of Newton's 3 laws of motion. You can use the short version if you like.
objects have inertia, an unbalanced force produces a proportional acceleration. a= F/m or F= ma,
and action-reaction
Work is ________ times distance
force
, If a 10N force lifts a mass 0.5 meters, the change in gravitational potential energy is _____
J.
5
If a 2kg mass is traveling 10 m/s, the mass has a kinetic energy of...
100 J
Why do handicap accessible ramps tend to be long and low angle rather than short and
steep?
Handicap accessible ramps tend to be long and low angle rather than short and steep because less
force is required to go up a long, low angled ramp than a short, steep one.
Higher mass and higher drop height result in _______ gravitational potential energy.
more
To find the total amount of work needed to climb a flight of stairs, you would need to
multiply which of the following ... (select all that apply).
number of steps
your acceleration
height of each step
your weight
the amount of time it took
number of steps, height of each step, and your weight
Describe one of the classes of levers that we discussed in class.
