Name _____________________________
2nd Six Weeks Checkpoint Review
Force
1. What it the net force on the objects below?
6N
11N
a._________
7N
7N
b.___________
4N
9N
c._____________
2. Two teams are playing tug-o-war. Team A is winning the game and about to beat Team B. What
must Team B do to prevent Team A from winning? (Use the words force and direction in your
answer)________________________________________________________________________
______________________________________________________________________________
3. A car is traveling in a straight line. If the car is in an accident and gets hit from the side (on the
driver’s side door), what will happen to its direction of
motion?________________________________________________________________________
______________________________________________________________________________
4. Calculate the force of a .25 kg baseball being struck by a bat traveling 13 m/s2.
5. A car runs out of gas and is being pushed by 2 people with a combined force of 1200N. The car is
accelerating at 2m/s2. What is the mass of the car?
6. A 6kg object hits the ground with the force of 58.8N. What is the acceleration of the falling
object?
Name _____________________________
Speed, Velocity, and Acceleration
7. A jet travels 600km in 2.5 hours. What is the speed of the jet?
8. A bird is flying south for the winter. The bird flies 1000km in 125 hours. What is the velocity of
the bird?
9. Jessica jogs on a path that is 25 kilometers long to get to a park that is south of her jogging path.
If it takes Jessica 2.5 hours then:
a. What is her speed?
b. What is her velocity?
True or False
10. ________ If a train is slowing down it is accelerating.
11. ________A Ferris wheel is turning at a constant speed of 5 m/s is not accelerating.
12. ________An airplane is flying west at 200 km/hr. 2 hours later, it is flying at 300 km/hr. Its
acceleration is 100km/hr2.
13.
What is the speed of the object when it has traveled 7 meters?_______________________________
Name _____________________________
Atomic Structure and Atomic Properties
Question
14.
Subatomic Particle
Charge
Location
Mass
Proton
Neutron
Electron
15. What is used to determine the atomic mass of an element?______________________________
16. What would cause a neutral atom to become a charged atom?___________________________
17. What is the atomic mass of the atom on the right? __________________
18. What is the name of the element on the right?_____________________
19. What is the charge of atom on the right?_________________________
20. How many valence electrons does this atom have?________________
21. How reactive is the atom on the right? Very, medium, or not
reactive________________________
The atom on the right is a neutral atom:
22. What is the atomic number of this atom?__________________________
23. How many protons does this atom have?__________________________
24. How many neutrons does this atom have?_________________________
25. How many electrons does this atom have?_________________________
26. How many valence electrons does this atom have?____________________
27. How reactive is this atom? Very, medium, or not at all?________________________________