Frame of Reference Point

Q.

Which of the following is the common characteristic of all moving bodies?

1. They change their position with time.

2. They always travel in straight lines.

3. They always travel with uniform speed.

4. They do not change their position with time.

Q.

Which of the following statement(s) about motion is/are true?
Statement 1: Motion of an object is relative to the position of another object.
Statement 2: Change in state of motion of an object is the result of an external force.
Statement 3: Motion of an object is change of position of the object with respect to time.

1. Statement 1 and 2

2. Statement 2 and 3

3. Statement 1 only

4. Statement 1, 2 and 3

Q.

A body is said to be at rest, if it does not change its position with respect to the reference point.

1. True

2. False

Q.

If a car is moving in the same direction and with speed as you, then what can you say about the motion of the car?

1. The car is at rest with respect to you.

2. The car is in motion with respect to you.

3. The car is at rest with respect to the ground.

4. The car is moving faster than you.

Q. You and your friend are sitting in a moving bus. Then, your friend is moving with respect to .

1. you
2. bus
3. a person on road

Q. To determine whether a body is in motion, we need a reference point.

1. True
2. False

Q. What is the initial velocity under free fall?

1. It can be any value
2. It is positive
3. It is non-zero

4. It is zero

Q.

What do you mean by a reference point?

Q.

Motion is the change of location or position of an object with time relative to an observer.

1. Motion of an object is only relative to the position of another object.

2. Change in motion is the result of an applied force.

Q. To describe motion, we need a frame of reference.

1. True
2. False

Q. A lamp in a moving train is in motion with respect to a passenger sitting in the train.

1. False
2. True

Q. A lamp in a moving train is in motion with respect to a passenger sitting in the train.

1. False
2. True

Q. To describe motion, we need a frame of reference.

1. True
2. False

Q. You and your friend are sitting in a moving bus. Then, your friend is moving with respect to .

1. you
2. bus
3. a person on road