Answer pls
I. MULTIPLE CHOICE
DIRECTION: Choose the letter of the correct answer.
1. What does 5 m/s represent?
a. distance b. speed c. velocity d. acceleration
2. What is speed?
a. The ratio of distance to time
b. The sum of distance and time
c. The product of distance and time
d. None of the above
3. What are being described by velocity?
a. Acceleration and speed
b. Speed and force
c. Speed and direction
d. Acceleration and force
4. What is 15 m/s to the North?
a. Acceleration b. Speed c. displacement d. velocity
5. Which of the following has a unit of m/s 2?
a. Weight b. Inertia c. acceleration d. velocity
6. Which of the following does NOT describe acceleration?
a. change in speed in a particular direction
b. change in motion at a particular direction
c. rate of change in velocity
d. rate of change in displacement
7. A bus is slowing down before it comes to a stop. Which of the following
describes its motion?
a. accelerating
b. decelerating
c. zero acceleration
d. none of the above
8. Which statement about the movement of an object with zero acceleration is
true?
a. The object may be at rest.
b. The object may be slowing down.
c. The object maybe speeding up.
d. all of the above
9. What does a constant velocity mean?
a. Positive acceleration c. Increasing acceleration
b. Negative acceleration d. Zero acceleration
10. Which situation is NOT possible?
a. A body has zero velocity and non– zero acceleration
b. A body travels with a northward velocity and northward acceleration
c. A body travels with northward velocity and a southward acceleration
d. A body travels with a constant velocity and zero acceleration
II. PROBLEM SOLVING: Solve the following problems.
1. What is the speed of a car that travels 90 meters in 7 seconds?
2. How long will your trip take if you travel 400 km at an average speed of
85 km/hr?
3. How long will it take for a satellite to travel 600,000 m at a rate of 110
m/s?
4. What is the speed of a walking person in m/s if he travels 1700 m in 1800
seconds?
5. How far will you travel in 7 minutes running at a rate of 6 m/s?
I. MULTIPLE CHOICE
DIRECTION: Choose the letter of the correct answer.
1. What does 5 m/s represent?
a. distance b. speed c. velocity d. acceleration
2. What is speed?
a. The ratio of distance to time
b. The sum of distance and time
c. The product of distance and time
d. None of the above
3. What are being described by velocity?
a. Acceleration and speed
b. Speed and force
c. Speed and direction
d. Acceleration and force
4. What is 15 m/s to the North?
a. Acceleration b. Speed c. displacement d. velocity
5. Which of the following has a unit of m/s 2?
a. Weight b. Inertia c. acceleration d. velocity
6. Which of the following does NOT describe acceleration?
a. change in speed in a particular direction
b. change in motion at a particular direction
c. rate of change in velocity
d. rate of change in displacement
7. A bus is slowing down before it comes to a stop. Which of the following
describes its motion?
a. accelerating
b. decelerating
c. zero acceleration
d. none of the above
8. Which statement about the movement of an object with zero acceleration is
true?
a. The object may be at rest.
b. The object may be slowing down.
c. The object maybe speeding up.
d. all of the above
9. What does a constant velocity mean?
a. Positive acceleration c. Increasing acceleration
b. Negative acceleration d. Zero acceleration
10. Which situation is NOT possible?
a. A body has zero velocity and non– zero acceleration
b. A body travels with a northward velocity and northward acceleration
c. A body travels with northward velocity and a southward acceleration
d. A body travels with a constant velocity and zero acceleration
II. PROBLEM SOLVING: Solve the following problems.
1. What is the speed of a car that travels 90 meters in 7 seconds?
2. How long will your trip take if you travel 400 km at an average speed of
85 km/hr?
3. How long will it take for a satellite to travel 600,000 m at a rate of 110
m/s?
4. What is the speed of a walking person in m/s if he travels 1700 m in 1800
seconds?
5. How far will you travel in 7 minutes running at a rate of 6 m/s?
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Answers & Comments
Answer:
1. Speed
Speed has the unit m/s.
2. The ratio of distance to time
Speed is calculated by dividing the distance over time.
3. Speed and direction
The unit of velocity is m/s + the direction of the object.
4. velocity
As mentioned, the unit of velocity is m/s + the direction of the object. Since 15 m/s to the North has m/s and direction, it is a velocity.
5. acceleration
Acceleration is distance per time squared (m/s2)
6. rate of change in displacement
A rate of change in displacement is NOT acceleration. A rate of change in displacement is velocity.
7. Decelerating
Decelerating means slowing down.
8. The object may be at rest.
Acceleration is zero when the object is not moving.
9. Zero acceleration
When velocity is constant, acceleration is zero.
10. A body has zero velocity and non–zero acceleration.
If acceleration is non-zero, velocity must be non-zero. Thus, this situation is not possible.
Problem solving
1. 12.86 m/s
2. 4.7 hours
3. 5454.5 seconds
4. 0.94 m/s
5. 2520 meters
Hope this helps. #CarryOnLearning