Este Quiz é cronometrado.
Você tem 10 minutos para completar as 10 questões deste quiz..
What is the difference between a vector and a scalar?
Vectors are longer
Vectors are like scalars, but also include a magnitude
Scalars are like vectors, but also include a unit
Vectors are like scalars, but also include a direction
Which of the following angles could be used to resolve a vector into two components?
180
270
45
100
60
90
A car is moving in a straight line at 50 m/s. How far will it have traveled in 10 seconds?
x = m
Resolve the following vector into its components:
R = 100.0 m @ 45 degrees
x = + m y = + m
Which equation will resolve your resultant into a y-component?
Rcos (-)
Rsin (-)
Rtan (-)
Rcos^2 (-)
A line is drawn to be 10.33 cm long at an angle of 10 degrees to the - y axis. What is the vector's y component?
The first blank is for the sign. The second blank is for the value. The third blank is for the units.
y =
The slope of a v/t graph shows which of the following:
Velocity
Acceleration
Displacement
Time
If you could measure the value of a slope on an x/t graph can directly show you which of the following:
Speed
Distance
What is the value of the area under a v/t graph?
A woman takes her car from rest at a stoplight to a speed of 25 m/s in 10.0 seconds. What is her acceleration?
a = m/s^2