Science 7 - LAND and SEA BREEZE and its Characteristics
rhan-LAS.docx
1. SCIENCE GRADE 7
Name of Learner: __________________________________ Grade Level: ________
Section: __________________________________________ Date: ______________
LEARNING ACTIVITY SHEET
Describing Motion of an Object
Background Information for Learners
Motion is a continuous change in the position of an object with respect to a stationary object. It is
described in terms of displacement, distance, velocity, acceleration, time and speed. Motion: A body is said to
be in motion when it changes its position with reference to a fixed reference point called the origin.
Distance is a scalar quantity that refers to "how much ground an object has covered" during its
motion. Displacement is a vector quantity that refers to "how far out of place an object is"; it is the object's
overall change in position.
Fig. 1. Illustration of the difference between distance and displacement.
After learning the difference between distance and displacement, it is also important to know the rate
of an object that is in motion. It is best described when we include the element of time.
In physics, Motion is the change with time of the position of an object. In both cases all points in the body
have the same velocity (speed – distance per unit time of an object in a given direction) and the same
acceleration (time rate of change of velocity).
Learning Competency with Code
Describe the motion of an object in terms of distance or displacement, speed or velocity, and acceleration.
(S7FE-IIIa-1)
ACTIVITY 1
TRUE OR FALSE
Directions: Write TRUE if the statement describes distance or displacement, and write FALSE, if the statement
does not describe Distance or displacement. Write your answer on the space provided.
______1. The total length travelled by a moving object is called Distance.
______2. Displacement has both magnitude and direction.
______3. Distance is a scalar quantity.
______4. Distance has direction.
______5. Displacement is equal to the distance travelled by an object.
______6. Displacement is the measure of how far an object.
______7. Distance refers to the shortest path travelled between the origin and final position.
______8. Distance and displacement are the same when an object travels in straight direction.
______9. A car covered 100 m from house to the market is an example of distance.
______10. Displacement is zero when the starting and ending up of an object is at the same location
2. A B
D C
ACTIVITY 2
CALCULATE ME!
Directions: Identify the total distance and displacement based from the illustrations.
Figure 2 illustration distances between 4 houses
1. I move from house A to house B.
What is my Distance _____
What is my Displacement____
2. I move from house A to house B. Then I went back to house A.
What is my Distance _____
What is my Displacement_____
3. I move from house A to house B. Then from B to C. And finally from C to D.
What is my Distance _____
What is my Displacement_____
4. I move from house A to house D.
What is my Distance _____
What is my Displacement_____
5. I move from house A to house B. Then from B to C. And then from house C to house D. And finally, from
house D, I went back to house A.
What is my Distance _____
What is my Displacement_____
ACTIVITY 3
SPEED TEST
Directions: For each situation, identify and calculate the distance travelled, the time that passed, and the speed. Use
the table below to supply the correct answer.
1.Nap threw a stone that flew 10 m in 3 sec. Calculate the speed of the ball?
2. A dog moves 6 m in 4 s. What is its speed?
3. A car that travels 52 km in 2 h, What is its speed?
4. How long will it take you to cover 50 m at an average speed of 1.5 m/s?
5. How long does for a motor cycle to take traveling 100 m at the speed of 6 m/s?
6. How many hours will take you to travel 350 km at an average speed of 80 km/hr?
7. Leo throws the basetball 15 meters in 3 seconds, what is the average speed of the baseball?
8. How long does it take a coconut fruit to fall from a 20m high tree at an average speed of 3 m/s?
9. How fast is the sprinter if it reached the 100 mark in just 9 s in a race?
10. How far does a wheel roll if it rolls at a speed of 4 m/s for 24 s?
50 M
50M
25M
5M
25M
3. No DISTANCE (d) TIME (t) SPEED ( v)
1.
2.
3.
4.
5.
6.
7.
8.
9.
10
Table 1.
ACTIVITY 4
TRY ME!
Directions: Analyze the situation and answer the questions briefly. Write your answer on the space provided.
a. If you want to get the speed of an object , what are the factor you need to consider and what are the materials you
need?
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b. What should be done in order to identify the speed of the biker?
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Reflection: What have you learn from the lesson?
Prepared by: FLORANTE L. MENDOZA, T-III
SCIENCE TEACHER