Forces and friction
Test Review Questions
1. What is a force?
2. What is friction? What are the 4 types of friction and how do they differ?
3. At what rate does gravity pull objects to the ground? What 2 things affect the gravitational pull of an object?
4. What is terminal velocity?
5. What is inertia? Why is inertia Newton's 1st law of motion?
6.Explain the difference beween a balanced and unbalanced force?
7. What is the difference between speed and velocity?
8. Give two senarios describing a refence point.
9. A jogger runs 100m race in 250 seconds. What is the joggers speed?(s=d/t)
10. A car accelerates from 0 to 70km/hr in 8 seconds. What is the car's acceleration? ( A= Vf -Vi/t)
11. A driver starts his parked car within 5 seconds and reaches a velocity of 54km/hr as he travels east. What is his acceleration?
12. What is the average speed of a plane flying 400km in 30 min? ( total distance/ total time)
13. A student ran for a track meet 250meters in 8 seconds. What was his average speed?
Go to Newton's 2nd law on Mrs. G's app to practice force problems.
