G7.docx

I. MULTIPLE CHOICE. Encircle the letter of the correct answer. 1. It is the actual length moved by the object during its entire motion a. Motion b. Speed c. Distance d. Displacement 2. It is the distance traveled by the elapsed time a. Distance b. Diplacement c. Velocity d. Speed 3. It is the shortest distance from the initial position straight to the final position a. Distance b. Diplacement c. Velocity d. Speed 4. It is a speed with direction a. Acceleration b. Velocity c. Distance d. Displacement For 5-6, Junnieboy walked from his house to the school which is about 500m away but he suddenly go back because he forget to get his allowance from his parents.

5. What is the distance travelled by junnie boy? a. 500m b. 1000m c. 1500m d. 0 m 6. What is junnieboy’s diplacement? a. 500m b. 1000m c. 1500m d. 0 m 7. When will we say that the object is accelerating? a. When it changes its speed b. When it has a constant speed c. When it doesn’t move d. When it has a constant speed 8. What is a distance travelled of a car whose speed is 20 m/s for 4 seconds? a. 5 m b. 80 m c. 204 m d. 20 m 9. All objects in a verticial motion or free fall experience the same acceleration which is the ______ a. Speed b. Gravity c. Distance d. Velocity 10. Which is correct if you throw a ball upward? a. It speeds up c. It slows down b. It will continue to go up and will never go down d. It burst 11. Given the table below, which of the following statement about the learner’s speeds is TRUE? Learner Kikay Kokoy Kakay

Distance Travelled (d) 40 20 60

Time (s) 8 5 12

a. Kakay > Kikay > Kokoy c. Kokoy < kakay = kikay b. Kikay = Kakay < Kokoy d. Kokoy < kikay >kakay 12. What is the constant value of acceleration due to gravity? a. -98 m/s2 b. -8.9 m/s2 c. -89 m/s2 d. -9.8 m/s2

13. If we drop a piece of paper and a stone from the same height from the ground inside a vacuum with no air resistance. Which one will reach the ground first? a. Paper b. stone c. Both will land at the same time d. Cannot be determine 14. What does these position-time graph means? a. The object is stationary or not moving b. The object is accelerating c. The object is in constant speed d. The object is in constant acceleration 15. Nonoy said that his car can travel 40 meters in 2 seconds. What is the speed of this car if it at rest? a. 0 m/s b. 20 m/s c. 40 m/s d. 80 m/s 16. The velocity of a train traveling to the west in a straight line is 60 Mph (miles/hour) . What is the speed of the train? a. 60 Mph to the west c. 60 Mph b. 60 Mph to the east d. Cannot be determine 17. You are running with a positive acceleration. What is the meaning of this statement? a. You are running with a decreasing speed b. You are running with an increasing speed c. You are running with a constant speed d. Your are running with a zero speed 18. What happens to the train’s motion of its velocity is positive and acceleration is negative? a. The train speeds up c. The train slows down b. The train moves constantly d. The train is at rest 19. You drop an apple. What is your observation of the motion of the apple? a. The apple is accelerating b. The apple is decelerating c. The apple is moving with a constant speed d. The apple is not moving 20. What is the slow of the line between two points in a velocity-time graph? a. Acceleration c. Average speed b. Speed d. Average acceleration For 20- 23,

21. Refer to the figure above, what part of the wave labeled as A? a. Amplitude b. Crest c. Trough d. Wavelength 22. Refer to the figure above, what part of the wave labeled as B? a. Amplitude b. Crest c. Trough d. Wavelength 23. Refer to the figure above, what part of the wave labeled as C? a. Amplitude b. Crest c. Trough d. Wavelength 24. Refer to the figure above, what part of the wave labeled as D? a. Amplitude b. Crest c. Trough d. Wavelength 25. A type of wave that are propagated by the use of any medium. a. Mechanical wave b. Electromagnetic wave c. Light wave d. Radio waves 26. A type of wave that are produced without a medium. a. Mechanical wave b. Electromagnetic c. Light wave d. Radio waves

For 26-28

27. Which two waves have the same aplitude but different frequencies a. Wave X and Y c. Wave X and Z b. c. Wave Y and Z d. All waves have the same frequency 28. How will you compare Wave X and Wave Y? a. Wave X has higher frquency than Wave Y b. Wave X has shorter wavelength than Wave Y c. Wave X and Y have the same wavelength d. The three waves have the same wavelength 29. Whuch of the following waves has the same frequency as Wave Y? a. b. c. d. 30. Wave X makes five full waves in two seconds. What is the frquency of wave X? A, 10 Hz b. 5 Hz c. 2.5 Hz d. 2.0 Hz II. TRUE OR FALSE. Write T if the statement is correct and F if the statement wrong. ______________1. The individual particles of the medium move parallel to wave propagation for longitudinal waves ______________2. A medium is needed for the propagation of all kinds of waves ______________3. The stretched regions in the waveform for the longitudinal wave are called compression ______________4. Only energy moves from source to receiver in wave motion ______________5. A wave with the highest frequency has long wavelength ______________6. A wave with short wavelengthhas high frequency ______________7. Water waves are longitudinal waves ______________8. Radiowaves are electromagnetic waves ______________9. Ultraviolet has higher wavelength than infrared _____________10. The invidividual particles of the medium moves perpendicular to transverse wave III. PROBLEM SOLVING. To receive credit be sure to: Identify Knowns/Unknowns, Write the Formula, show your solution and box the answer with correct units 1. If a car travels 400m in 20 seconds how fast is it going? (3 pts)

2. If you move 50 meters in 10 seconds, what is your speed?(3 pts)

3. You arrive in my class 45 seconds after leaving a tricycle which is 90 meters away. How fast did you travel? (3 pts)

4. You need to get to class, 200 meters away, and you can only walk in the hallways at about 1.5 m/s. (if you run any faster, you’ll be caught for running). How much time will it take to get to your class(3 pts)

5.

How far can you get away from your little brother with the water gun if you can travel at 3 m/s and you have 15s before he sees you? ( 3 pts)