Q.1
What is the difference between a vector quantity and a scalar quantity?
  • A scalar has a magnitude and direction and a vector has only a magnitude
  • A vector has a magnitude and direction and a scalar has only a magnitude
  • A scalar has a direction and a vector has a magnitude
  • None of the above
Q.2
What two measurements are necessary for calculating speed?
  • Mass and time
  • Temperature and mass
  • Mass and distance
  • Distance and time
Q.3
A falling skydiver which has reached terminal velocity is considered to be in a state of free fall.
  • True
  • False
Q.4
An object accelerates atm/s^Assuming the object starts from rest, how much time does it need to accelerate to a speed ofm/s?
  • 4 s
  • 8 s
  • 16 s
  • 1/16 s
Q.5
A merry go round starts from rest, and reaches an angular speed of 2 radians/second in 3 seconds. What is its angular acceleration, and through what angle does it sweep in the 3 second time interval?
  • α = 3/2 rad/s2,   θ=27/4 rad
  • α = 2/3 rad/s2, θ=3 rad
  • α = 2/3 rad/s2, θ=6 rad
  • α = 6 rad/s2, θ=27 rad
Q.6
In the absence of air resistance, objects fall at constant
  • speed
  • velocity
  • acceleration
  • all of the above
Q.7
A flywheel starts from rest, and has an angular acceleration of 4 rad/sWhat will be its angular speed when it has made one revolution?
  • 5.01 rad/s
  • 50.27 rad/s
  • 2.83 rad/s
  • 7.09 rad/s
Q.8
A hummingbird averages a speed of aboutkm/hour (Cool facts: They visit up toflowers per day, and reach maximum speed, while diving, up tokm/hour!). Ruby-throated hummingbirds take a non-stop trip across Gulf of Mexico in which they fly forhours straight! How far is the trip across the Gulf of Mexico at their average speed?
  • 810 km
  • 2.5 km
  • 3.6 km
  • 360 km
Q.9
You run from your house to a friend's house that is 3 km away. You then walk home. The distance you traveled is 6 km. What is your displacement?
  • 6  km
  • 0 km
Q.10
The slope of a velocity vs time graph is known as:
  • acceleration
  • velocity
  • average speed
  • displacement
Q.11
Which of the following is a unit for acceleration?
  • km/s
  • m/s2
  • mi/hr
  • ft
Q.12
Calculate the speed of a sprinter who ranmeters inseconds.
  • 10m/s
  • 10km/s
  • 10m/hr
  • 10km/hr
Q.13
The height of an individual step on a staircase is closest to
  • 2.0 m
  • 2.0 cm
  • 20 cm
  • 20 mm
Q.14
A person already walking at 1 m/s takes 2 seconds to reach a top speed of 5 m/s. What is their acceleration?
  • 1 m/s^2
  • 2 m/s^2
  • 4 m/s^2
  • 6 m/s^2
Q.15
Which of the following statements about speed and velocity is correct?
  • Velocity only describes an object’s rate of motion.
  • Speed describes how an object is changing its velocity.
  • Speed and velocity both describe how an object is speeding up.
  • Only velocity includes the direction an object is traveling.
Q.16
A car travelsmeters due north inseconds. Then the car turns around and travelsmeters due south. What is the magnitude and direction of the car's resultant displacement
  • 40 metres, South
  • 50 metres, South
  • 50 metres, North
  • 40 metres, North
Q.17
Velocity is different from speed because..
  • Velocity is distance/time. Speed is displacement/time.
  • Velocity is speed in a certain direction and can be positive or negative.
  • Speed is velocity in a certain direction. Both can only be positive.
  • Velocity is how much speed changes over time.
Q.18
What is the slope of a velocity-time graph an indication of?
  • Distance travelled
  • Instantaneous speed
  • Acceleration
Q.19
A bus travelling eastwards atm s-1 takesto come to halt, its deceleration is equal to
  • 6 m/s eastward
  • -6m/s eastward
  • 6m/s2 eastward
  • -6 m/s2 eastward
Q.20
A car covers a distance of 5 km in 5 mins, its average speed is equal to
  • 1km/h
  • 25km/h
  • 60km/h
  • None
0 h : 0 m : 1 s