7215372
Descripción
Test por Charles Rayner, actualizado hace más de 1 año
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Creado por Charles Rayner
hace casi 10 años
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Pregunta 1
Pregunta
The International System of Units (SI) has _________ standard units.
Respuesta
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6
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7
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4
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5
Pregunta 2
Pregunta
Select the list which contains only SI basic units.
Respuesta
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kilogram, Newton, second, candela
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kilogram, Kelvin, meter, second
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liter, meter, second, watt
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joule, Kelvin, kilogram, watt
Pregunta 3
Pregunta
For an equation to be true, both sides of an equation are equal in:
Respuesta
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units
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magnitude (numerical value)
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dimensions
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all of these
Pregunta 4
Pregunta
For motion to occur there must be _________
Respuesta
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a change in speed
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a change in velocity
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a change in position
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all of these
Pregunta 5
Pregunta
The magnitude of a displacement, compared with that of a total distance traveled, is
Respuesta
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less than or equal to it
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always equal to it
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greater than or equal to it
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none of these; the two cannot be compared
Pregunta 6
Pregunta
The rate at which an object's velocity changes with time is called its
Respuesta
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speed
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momentum
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motion
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acceleration
Pregunta 7
Pregunta
A weight lifter can bench 111 kg. How many milligrams (mg) is this?
Respuesta
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1.11 x 10^8 mg
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1.11 x 10^9 mg
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1.11 x 10^7 mg
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1.11 x 10^6 mg
Pregunta 8
Pregunta
An airplane increases its speed at the average rate of 15 m/s^2. How much time does it take to increase its speed from 100 m/s to 160 m/s?
Respuesta
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4.0 s
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0.25 s
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17 s
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0.058 s
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