The International System of Units (SI) has _________ standard units.
6
7
4
5
Select the list which contains only SI basic units.
kilogram, Newton, second, candela
kilogram, Kelvin, meter, second
liter, meter, second, watt
joule, Kelvin, kilogram, watt
For an equation to be true, both sides of an equation are equal in:
units
magnitude (numerical value)
dimensions
all of these
For motion to occur there must be _________
a change in speed
a change in velocity
a change in position
The magnitude of a displacement, compared with that of a total distance traveled, is
less than or equal to it
always equal to it
greater than or equal to it
none of these; the two cannot be compared
The rate at which an object's velocity changes with time is called its
speed
momentum
motion
acceleration
A weight lifter can bench 111 kg. How many milligrams (mg) is this?
1.11 x 10^8 mg
1.11 x 10^9 mg
1.11 x 10^7 mg
1.11 x 10^6 mg
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?
4.0 s
0.25 s
17 s
0.058 s
