Speed and velocity both have same unit
a. Yes b. No
2. What is the shape of v-t graph of non uniform
motion
a. Straight b. Curved
3. Circular motion is
a. Uniform motion b. Non uniform motion
4. Distance travelled by a body can be zero
a. Yes b. No
5. Negative acceleration is known as
a. Deformation b. Retardation
6. Slope of distance-time graph gives
a. Speed b. Acceleration
7. A body travels 6k.m. in 2miute. Its speed is
a. 5km/h b. 50m/s
8. Which physical quantity is vector
a. Distance b. Displacement
Answers
Speed and velocity both have same unit
=> a. Yes
What is the shape of v-t graph of non uniform
motion
=> b. curved
3. Circular motion is
=> a. Uniform motion
4. Distance travelled by a body can be zero
=> a. Yes
5. Negative acceleration is known as
=> deceleration
6. Slope of distance-time graph gives
=> a. Speed
7. A body travels 6k.m. in 2miute. Its speed is
=> b. 50m/s
8. Which physical quantity is vector
=> b. Displacement
1. Yes. Speed and Velocity both have same units .
▪(m/s)
2. The shape of curve in v-t graph during non-uniform motion is a curve.
▪(as the body has different velocity at different time)
3.Circular motion is Non-uniform motion. ▪(This is because the particle changes it's direction frequently at every point while moving in circular path.)
4.Distance travelled by a body can't be zero, until and unless it's in rest.
5. Negative acceleration is known as Retardation.
6. Slope of distance-time graph gives Speed.
7. A body travels 6km in 2min. It's speed is:
6000m÷ 2× 60 s
= 50m/s
8. Displacement is a vector quantity.