Science Final: Test #1
Convert 60 miles per hour to ft/s
(60x5280)/(60x60)= 88 ft/s
How many meters are there in 2.5 kilometers?
2.5x1000= 2500
A man has a mass of 60kg on the earth what is his mass on the moon?
60kg
A meter is equivalent to
all of these
A satellite is kept in its circular orbit around the earth by a force called
all the above are true
Acceleration occurs when an object undergoes
any of the above
The ratio of mass to volume of a substance is called its
density
What is the unit of acceleration in the English system?
ft/s2
One milligram of mass is equal to how many grams?
0.001
One milliliter (o.1 mL) is equal to:
1.0 cm3
How many kilometers are there in 100 miles?
100 x 1.6 = 160
How far an object will fall at the end of first seconds?
16ft
Two cubic meters of dry soil has a mass of 6000 kg. What is the density of the soil?
3000 kg/m3
What is the value of acceleration of gravity on the surface of the earth?
32.0 ft/s2
A car travels 400km in 8 hours, what is the average speed of the car?
400/8=50
A plane flying at a speed of 600 miles per hour. How many miles does it go in 5 hours?
5000 miles
How long does it take for a car traveling at a speed of 60 km/hr to a distance of 360 km?
6.0 hours
A mass of 2.0 kg iron ball has a weight
9.8x2.0= 19.6 Newton
A person runs 90m in 9s, what is the speed of this person?
90m/9s=10 m/s
A train travels a distance of 600 ft in 5s. What is the speed of the train in ft/s?
Divide. 600/5=120
Which of the following is not a measurement?
Ex. 350
Convert 90 km/hr to m/s
Multiply value by 5/18. 90km x 5/18=25m/s
A measurement
all of the above
If one variable parameter increases in value while a second related variable parameter increases in the same proportion, the relationship is said to be
direct
When the external unbalanced force on an object is doubles, its acceleration is
doubled
Which one of the following is not a fundamental property?
force
What is the unit of speed in the English System?
ft/s
The force that keeps the planets from drifting away from the Sun is the
gravitational force
The mass of an object is a measure of the
inertia
What is the standard unit of mass in the metric system?
kilogram
What is the metric unit of volume?
liter
What is the unit of speed in the metric system?
m/s
It is always correct to say that a body's inertia is proportional to its
mass
One kilogram of steel and one kilogram of feathers do not differ from each other in
mass
What are four fundamental properties?
mass, length, time, and charge
What is the standard metric unit of length?
meter
What are four fundamental SI units?
meter, kg, second, ampere
A well-defined and agreed-upon referent used as a standard in all system of measurement is called
unit
How fast an object is moving in a particular direction is described by
velocity
How much space something occupies is described by its
volume