Which set of physical quantities consists only of scalar quantities?
Question 2
2.
An object moving in a positive direction experiences an acceleration of +2,0 m.s-2. This means the object
Question 3
3.
If the acceleration of an object is zero, then that object cannot be moving
Question 4
4.
The velocity vs time graph for the motion of a car on a straight road is shown in the graph. Assume that the car starts at the origin 𝓍 = 0 at time t = 0.
The car's initial velocity is east. After 10 s is the car's position east or west from its starting point?
Question 5
5.
The velocity vs time graph for the motion of a car on a straight road is shown in the graph. Assume that the car starts at the origin 𝓍 = 0 at time t = 0.
During which time interval(s) is the car speeding up? Select all that apply.
Question 6
6.
The velocity vs time graph for the motion of a car on a straight road is shown in the graph. Assume that the car starts at the origin 𝓍 = 0 at time t = 0.
If the car's initial velocity is east, during which time interval(s) is the acceleration west? Select all that apply.
Question 7
7.
The graph shows the velocity of an object over time. Which one of the following options correctly shows how the acceleration of the object changes with time?
Question 8
8.
The motions of a car and a truck along a straight road are represented by the velocity-time graphs in the figure. The two vehicles are initially alongside each other at time t = 0. At time T, what is true of the distances traveled by the vehicles?