Rest and Motion

Q. Define rest and motion.

Q.

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

1. True

2. False

Q.

All planets, including Earth, revolve around the Sun. The Sun is

1. in motion with respect to the Earth

2. at rest

3. in motion

4. at rest with respect to the Earth

Q. Is anything in the universe is at rest

Q. What propagation of light defines its motion in a straight line?

1. Circular
2. Curvilinear
3. Elliptical
4. Rectilinear

Q. Person takes time t1 to reach the top on a stationary elevator.It takes time t2 to reach if it stands on the moving elevator.What will be the time taken to reach the drop if it moves on a moving elevator.

Q.

What is relative motion?

Q. If you and your friend are sitting in a moving car, then your friend is in motion with respect to you.

1. True
2. False

Q.

Which of the following is necessary to change the direction of motion of an object?

1. Pressure

2. Energy

3. Force

4. Speed

Q. Astone is falling from rest . the total distance covered by it in last second of its motion is equal to distance covered by it in first three seconds . what is the height from which stone is dropped ?

Q.

Depending on the state of rest or motion, choose the odd one out.

1. A parked car

2. A table

3. A mountain

4. A stone dropped from a tower

Q.

Two friends Alexa and Siri are sitting inside a train which is moving at a constant speed. With respect to Alexa, Siri

1. is in non-uniform motion

2. can be at rest or in motion, depending on the speed of the train

3. is at rest

4. is in uniform motion

Q. Define rest and motion.

Q.

In which of the following case(s) can we say that the object is moving?

1. The observer has to change his head position with time to see the object

2. The object appears to move towards the observer

3. The object appears to move away from the observer

4. The object does not change position with respect to the observer

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 moving faster than you.

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

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

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

Q.

Which of the following statements is correct?

1. The Sun is at rest.
2. All statements are incorrect
3. Motion is an absolute.
4. We can use occurrence of lightning or thunder to measure time interval.

Q.

All of us on the earth are always at rest with respect to each other but moving with respect to the sun and the other bodies in the universe.

1. True
2. False

Q. Harshit is sitting inside a stationary bus. Which of the following objects will appear to be moving with respect to him?

(A) Fellow passengers
(B) Seats of the bus
(C) The road on which bus stands
(D) Another passing bus [1 Mark]

Q. What is necessary to describe the state of rest or motion of an object?

1. A reference point
2. Object's size
3. Object's mass
4. Object's speed