MOTION IN 2 DIMENSIONS
1. A: Motion is the change in position of an object with respect to a reference
point over time.
2. Q: What is rest in physics?
A: An object is at rest if it does not change its position with respect to its
surroundings.
3. Q: What are the types of motion?
A: Linear, circular, rotational, and periodic motion.
4. Q: What is linear motion?
A: Motion in a straight line.
5. Q: What is circular motion?
A: Motion in a circular path around a fixed point.
6. Q: What is periodic motion?
A: Motion that repeats itself after regular intervals of time.
7. Q: Give an example of linear motion.
A: A car moving on a straight road.
8. Q: Give an example of circular motion.
A: The motion of the moon around the Earth.
9. Q: What is speed?
A: Speed is the distance covered per unit time.
10.Q: What is velocity?
A: Velocity is the speed of an object in a specific direction.
11.Q: What is the SI unit of speed and velocity?
A: Meter per second (m/s).
12.Q: What is acceleration?
A: Acceleration is the rate of change of velocity with time.
13.Q: What is deceleration?
A: Negative acceleration; when an object slows down.
14.Q: What is uniform motion?
A: Motion with constant speed in a straight line.
15.Q: What is non-uniform motion?
A: Motion with changing speed or direction.
16.Q: Define displacement.
A: The shortest distance between initial and final position of an object.
17.Q: Is displacement a vector quantity?
A: Yes, it has both magnitude and direction.
, 18.Q: What is distance?
A: The total path length covered by an object.
19.Q: Is distance a scalar or vector quantity?
A: Scalar.
20.Q: Can displacement be zero while distance is not?
A: Yes, for example in a round trip.
21.Q: Name the three equations of motion.
A:
o v=u+atv = u + at
o s=ut+12at2s = ut + \frac{1}{2}at^2
o v2=u2+2asv^2 = u^2 + 2as
22.Q: What do the symbols u,v,a,s,tu, v, a, s, t represent?
A:
o uu: initial velocity
o vv: final velocity
o aa: acceleration
o ss: displacement
o tt: time
23.Q: If an object starts from rest, what is uu?
A: Zero.
24.Q: If acceleration is zero, what type of motion is it?
A: Uniform motion.
25.Q: Which equation of motion is used to find displacement?
A: s=ut+12at2s = ut + \frac{1}{2}at^2
26.Q: What is the unit of acceleration?
A: Meter per second squared (m/s²).
27.Q: What does negative acceleration mean?
A: The object is slowing down (deceleration).
28.Q: What is a distance-time graph?
A: A graph that shows how distance changes with time.
29.Q: What does a straight line on a distance-time graph indicate?
A: Uniform motion.
30.Q: What does a curve on a distance-time graph represent?
A: Non-uniform motion.
1. A: Motion is the change in position of an object with respect to a reference
point over time.
2. Q: What is rest in physics?
A: An object is at rest if it does not change its position with respect to its
surroundings.
3. Q: What are the types of motion?
A: Linear, circular, rotational, and periodic motion.
4. Q: What is linear motion?
A: Motion in a straight line.
5. Q: What is circular motion?
A: Motion in a circular path around a fixed point.
6. Q: What is periodic motion?
A: Motion that repeats itself after regular intervals of time.
7. Q: Give an example of linear motion.
A: A car moving on a straight road.
8. Q: Give an example of circular motion.
A: The motion of the moon around the Earth.
9. Q: What is speed?
A: Speed is the distance covered per unit time.
10.Q: What is velocity?
A: Velocity is the speed of an object in a specific direction.
11.Q: What is the SI unit of speed and velocity?
A: Meter per second (m/s).
12.Q: What is acceleration?
A: Acceleration is the rate of change of velocity with time.
13.Q: What is deceleration?
A: Negative acceleration; when an object slows down.
14.Q: What is uniform motion?
A: Motion with constant speed in a straight line.
15.Q: What is non-uniform motion?
A: Motion with changing speed or direction.
16.Q: Define displacement.
A: The shortest distance between initial and final position of an object.
17.Q: Is displacement a vector quantity?
A: Yes, it has both magnitude and direction.
, 18.Q: What is distance?
A: The total path length covered by an object.
19.Q: Is distance a scalar or vector quantity?
A: Scalar.
20.Q: Can displacement be zero while distance is not?
A: Yes, for example in a round trip.
21.Q: Name the three equations of motion.
A:
o v=u+atv = u + at
o s=ut+12at2s = ut + \frac{1}{2}at^2
o v2=u2+2asv^2 = u^2 + 2as
22.Q: What do the symbols u,v,a,s,tu, v, a, s, t represent?
A:
o uu: initial velocity
o vv: final velocity
o aa: acceleration
o ss: displacement
o tt: time
23.Q: If an object starts from rest, what is uu?
A: Zero.
24.Q: If acceleration is zero, what type of motion is it?
A: Uniform motion.
25.Q: Which equation of motion is used to find displacement?
A: s=ut+12at2s = ut + \frac{1}{2}at^2
26.Q: What is the unit of acceleration?
A: Meter per second squared (m/s²).
27.Q: What does negative acceleration mean?
A: The object is slowing down (deceleration).
28.Q: What is a distance-time graph?
A: A graph that shows how distance changes with time.
29.Q: What does a straight line on a distance-time graph indicate?
A: Uniform motion.
30.Q: What does a curve on a distance-time graph represent?
A: Non-uniform motion.
