# NCERT Class 9 Physics Formative Assessment Motion CBSE Board Sample Problems

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**Short Answer Based questions**

1) What is unit of acceleration?

2) What is zero uniform velocity motion?

3) A body moving in a circle with constant speed. Is it acceleration?

4) A body goes from point A to B and then return then from B to A. what is the total displacement?

5) Acceleration is a vector quantity True or false?

6) What is the path of a velocity —time graph of a body moving with uniform acceleration

7) What all ways the velocity of the body can be changed?

8) What is average speed?

**Match the column**

Column A | Column B |

The Slope of the speed-time graph is called | Average Velocity |

The arithmetic mean of initial and final velocity | Distance |

What quantity is obtained by the area under speed time graph | Acceleration |

The slope of the distance time graph | Speed |

**Table type question**

A car moves in a straight line from rest at t0. It accelerates with 2m/s2

Solve the following table

Time | 2sec | 10mm | 25 m | 10 m/s |

Displacement | ? | ? | ? | ? |

Velocity | ? | ? | ? | ? |

**Fill in the blanks**

1) A car starts at rest and travel a distance 20 m in 1 sec .The car average speed is___

2) Motion of earth around sun is an example of _____ Motion

3) Tractor moving with 18 km/h is then car moving with 1500 m/mm

4) The motion of a free falling body is _____an example of ___motion

5) The curved speed time graph represent_____ accelerated motion

6) Distance is a quantity while displacement is a _____quantity

Solution

**Fill in the blanks Solution**

1) 20 m/s

2) Uniform circular motion

3) Lesser

4) Uniform acceleration motion

5) Not uniform

6) Scalar, vector

**Crossword Puzzle**

Across

2. Physical quantity obtained by dividing displacement with time taken

3. A quantity having both magnitude and direction

4. This remains constant in uniform circular motion

6. It is the slope of speed -time graph

8. This measure the distance travelled by the car

Down

1. This is the other name for negative acceleration

4. The speed is said to be a

5. This is the acceleration of the body with uniform velocity

7. This measure the speed of the car

Solution

Crossword solution

Across: Velocity, Vector, speed, acceleration, Odometer

Down: Retardation, Scalar, Zero, Speedometer