# ECAT/ECAT Physics Circular Motion Mcqs Questions Set 2 Sample Test,Sample questions

## Question: ``` A body can have consutant velocity when it follows a ```

1.elliptical path

2.circular path

3.parabolic path

4.rectilinear path

## Question: ``` A cyclist cycling around a circular racing track skids because ```

1.the centripetal force upon him is less than limiting friction

2.the centripetal force upon him is greater then limiting friction

3.the centripetal force upon him is equal to the limiting friction

4.the friction between the tyres of the cycle and road vanishes

1.mg

2.mg - ma

3.mg + ma

4.mg - ma

1.zero

2.89N

3.9.8 N

4.10N

1.4

2.3

3.2

4.5

1.2 ?

2. ?

3.4 ?

1.?

2.3?

3.6?

4.12?

1.1N

2.10N

3.2N

4.100N

## Question: ``` A hoop and disc have same mass and radius. Their rotational K.E are related by an equation ```

1. K.Ehoop = K.Edisc

2.K.Ehoop = 2K.Edisc

3.K.Ehoop = 1/2K.Edisc

4.K.Ehoop = 4K.Edisc

## Question: ``` According to Einstein the gravity interaction is possible between ```

1.material objects only

2.material objects and electromagnetic radiation only

4.none of the above

1.?

2.?/2

3.?/30

4.?/180

1.3 hours

2.6 hours

3.12 hours

4.24 hours

4.2.8 ms-1

1.67.3?

2.57.3?

3.87.3?

4.60?

1.42000km

2.36000km

3.24000 km

4.18000 km

1.8 Kms-1

2.8.1 Kms-1

3.7.9 Kms-1

4.8 ms-1

## Question: ``` The direction of linear velocity of body moving in a circle is ```

1.along the axis of rotation

2.along the tangent

3.directed towards the center

4.directed away form the center

1.T = rV

2.T = ?w

3.T = 2??

4.T = 2?/?

## Question: ``` The rotational K.E of hoop is equal to the ```

1.its translational K.E

2.half than its translational K.E

3.double than its translational K.E

4.four times than its translational K.E

## Question: ``` When a body is whirled in a horizontal circle by means of a string the centripetal force is supplied by ```

1.mass of a body

2.velocity of body

3.tension in the string

4.centripetal acceleration

1.180?

2.0?

3.90?

4.45?

1.Einstein

2.Galileo

3.Newtons

4.Plank

1.? R

2.2? R

3.zero

4.4? R

1.9.8 N

2.19.6 N

3.129.4 N

4.39.2 N

## Question: ```A satellite moving round the earth constitutes ```

1.An inertial frome of reference

2.non inertial frame

3.neither inertial nor non inertial

4.both inertial and non inertial

## Question: ```A stone is whirled in a vertical circle at the end of a string. When the stone is at the highest position the tension in the string is ```

1.maximum

2.zero

3.equal to the weight of the stone

4.less than the weight of the stone

1.maximum work

2.minimum work

3.negative work

4.no work

1.365 days

2.730 days

3.329 days

4.129 days

1.? /3 x r

2.?/6 x r

3.?/30 x r

4.? / 180 x r

## Question: ```If we whirl a stone at the end of a string in the vertical circle it is likely to break when the stone is ```

1.at the highest point

2.at the lowest point

3.at any point during motion

4.at the point where gravity is not acting

1.F=ma

2.F=?p/?t

3.? = 1a

4.all above

## Question: ```In case of planets the necessary acceleration is provided by ```

1.Gravitational force

2.frictional force

3.coulomb force

4.centripetal force

1.??R

2.2??R

4.4??R

1.Venus

2.Mercury

3.Uranus

4.Sun

1.a = a x r

2.a = r x a

3.a = a x r

4.r = a x a

## Question: ```The span of broad jump depends upon ```

1.mass of the jumper

2.height of jump

3.angle of projection

4.none

## Question: ```When a body is moving along a circular path it covers a certain angle in a given internal of time. Such type of motion is ```

1.vibratory motion

2. linear motion

3.rotatory motion

4. angular motion

1.mV/r2

2.mV/r

3.mV2/r

4.mV2/r2

1.2?

2.?/2

3.?

4.20?

## More MCQS

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