Concepts
Formulas
Laws
Problems
100
Explain or define scalar quantity.
A scalar quantity is a quantity (number) that has magnitude but no direction.
100
Write a formula that can be used to determine the average speed of an object.
100
If an object is at rest, then there are no forces acting upon the object.
False.
100
Georgia is jogging with a velocity of 4 m/s when she accelerates at 2 m/s2 for 3 seconds. How fast is Georgia running now?
10m/s
200
Give a real-life example of a vector quantity.
Answers may vary.
E.g. A ship is traveling 25 km/h East.
200
Write a formula that can be used to determine the acceleration of an object.
200
Fast-moving objects have more inertia than slow-moving objects
False- Speed doesn't affect the amount of inertia.
200
Draw FBD for an object of 100 Newtons hanging from a wire 
300
Distinguish displacement from distance.
- Distance is a scalar quantity that refers to the total path length an object moves.
- Displacement is a vector quantity that refers to the difference between the final position and the initial position.
300
Write a formula that can be used to determine the displacement of an object.
300
It would take an unbalanced force to keep an object in motion at a constant velocity.
False - balanced force.
300
Zack and his scooter have a total mass of 50 kilograms. Assume that the net force acting on Zeke and the skateboard is 25 Newtons. What is his acceleration?
0.5 m/s2