Distance Vs Displacement

Q.

A quantity which has both magnitude and direction is called ______.

Q.

Can displacement be 0? If yes give an example

Q.

In an experiment to measure the time period of a simple pendulum, the time for 20 complete oscillations was found to be 36 s. What is the time period of this pendulum?

Q.

A graph is plotted to show the velocity of a car as a function of time. If the graph is a straight line, it means that

1. the car started at rest

2. acceleration was constant

3. acceleration was increasing

4. velocity was constant

Q.

Question 4

A piece of ribbon folded five times is placed along a 30 cm long measuring scale as shown in Fig.

The length of the ribbon is between:

(a) 1.15 - 1.25 m

(b) 1.25 - 1.35 m

(c) 1.5 - 1.6 m

(d) 1.6 - 1.70 m

Q.

What does the area below $v–t$ graph give?

1. Acceleration

2. Displacement

3. Average speed

4. Average velocity

Q. If the time taken by the bob of a pendulum to move from point O to A is 4 seconds, then the time taken by it to complete its one oscillation is:

1. 
   12 seconds
2. 
   4 seconds
3. 
   16 seconds
4. 
   8 seconds

Q. The first half of total distance of 50 km is covered in 2 h, and the second half in 3 h. The average speed is ______.

1. 7 ms^ (-1)
2. 13.8 ms^ (-1)
3. 5.56 ms^ (-1)
4. 2.78 ms^ (-1)

Q.

Differentiate between uniform and non-uniform motion?

Q.

Which of the following is not a valid displacement-time graph of an object in motion?

1. 

2. 

3. 

4. 

Q. A particle is moving in a circular path of radius r, the displacement and distance after covering half a circle would be:

1. $Zero,\pi r$
2. $2r,Zero$
3. $2r,\pi r$
4. $\pi r,Zero$

Q. has both magnitude and direction.

1. Speed
2. Displacement
3. Distance

Q. An object travels a distance of 40 m and comes back to its original position. The displacement of the object is:

1. 20 m
2. 40 m
3. 80 m
4. Zero

Q. A boy moves along a circular path of perimeter $30m$ and comes back to the point where he started the journey. What is the distance covered and the displacement of the boy?

1. Distance = $0m$
   Displacement = $0m$
2. Distance = $30m$
   Displacement = $0m$
3. Distance = $30m$
   Displacement = $30m$
4. Distance = $0m$
   Displacement = $30m$

Q. The hour hand of a clock is $4\text{cm}$ long. What is the distance and displacement that its tip would cover in $12$ hours?

1. $25.14\text{cm};28.28\text{cm}$
2. $0\text{cm};25.14\text{cm}$
3. $28.28\text{cm};25.14\text{cm}$
4. $25.14\text{cm};0\text{cm}$

Q.

Ramu moves along the periphery of a square field of side $10m$. He completes travelling one side in $40s$. What will be the magnitude of distance and displacement at the end of $2$ minutes and $20$ seconds ?

1. $35m$, $35m$

2. $35m$, $5m$

3. $35m$, $10m$

4. $25m$, $10m$

Q. The SI unit of displacement is _______.

1. foot
2. metre
3. kilometre
4. centimetre

Q. Distance and displacement are equal for an object, if it moves in a _______ path.

1. curvilinear
2. circular
3. linear
4. zig-zag

Q. Which of the following situation(s) can be considered to be at rest for an observer travelling in a moving car?

1. Birds flying at the same speed in the same direction as that of the moving car.
2. Children crossing the road in front of the moving car.
3. Trees planted on the sides of the road.
4. A cat sleeping in the same car.

Q.

An ant travels along a right angled triangle $△$ PQR first from P to R, then from R to Q. Find the displacement and distance travelled by the ant?
Given, PR = $13m$, RQ = $12m$

1. Displacement = $25m$
   Distance = $25m$
2. Displacement = $25m$
   Distance = $5m$
3. Displacement = $5m$
   Distance = $25m$
4. Displacement = $5m$
   Distance =$5m$