Free Printable DKV31083 CH6: Moment of Inertia

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DKV31083 CH6: Moment of Inertia

Total questions: 16

Worksheet time: 9mins

Name

Class

Date

The figure shows scale drawings of four objects, each of the same mass and uniform thickness, with the mass distributed uniformly. Which one has the greatest moment of inertia when rotated about an axis perpendicular to the plane of the drawing at point P?

A solid sphere, solid cylinder, and a hollow pipe all have equal masses and radii. If the three of them are released simultaneously at the top of an inclined plane and do not slip, which one will reach the bottom first?

cylinder

pipe

sphere

They all reach the bottom at the same time.

Two uniform solid balls, one of radius R and mass M, the other of radius 2R and mass 8M, roll down a high incline. They start together from rest at the top of the incline. Which one will reach the bottom of the incline first?

The small sphere arrives first.

The large sphere arrives first.

Both reach the bottom at the same time.

Torque is the product of a force exerted on an object times the lever arm.

True

False

Does a bridge anchored resting on two pillars have any torque?

No, it isn't moving

Yes, but it is at equilibrium

Yes, but it will soon break because of the torque

No, Bridges can't have torque

The moment of inertia:

is synonymous with mass

does not depend on where the mass is located

resistance to a change in rotational inertia

more resistance to change = less inertia

When an object is experiencing a net torque

it is in dynamic equilibrium.

it is in static equilibrium.

it is rotating.

it is translating.

The property of a body to resist change in motion.

mass

weight

volume

inertia

A person sits on a freely spinning lab stool that has no friction in its axle. When this person extends her arms,

her moment of inertia increases and her angular speed decreases.

her moment of inertia decreases and her angular speed increases.

her moment of inertia increases and her angular speed increases.

her moment of inertia increases and her angular speed remains the same.

10.

Sebatang hollow silinder dengan panjang 60 cm dan berjisim 4 kg diputar di pusat jisim. berapakah moment inertia batang tersebut...

1200 kg.cm²

2400 kg.cm²

3600 kg.cm²

4000 kg.cm²

5000 kg.cm²

11.

Hollow pipe mempunyai outer radius 22 cm dan inner radius nye adalah 20 cm. Jika jisim hollow pipe adalah 4 kg, berapakah moment inertia pipe ini?

I = 1,1768 kg m2

I = 2,1768 kg m2

I = 0,1768 kg m2

I = 3,1768 kg m2

I = 4,1768 kg m2

12.

Tentukan moment inertia bola solid berjisim 20 kg dengan radius 0.1 meter, jika paksi putaran berada di pusat bola seperti didalam gambarajah.

I = 0,07 kg m2

I = 0,08 kg m2

I = 0,09 kg m2

I = 0,10 kg m2

I = 0,11 kg m2

13.

Tentukan moment inertia bola tipis berongga berjisim 0.5 kg dengan radius 0.1 meter, jika paksi putaran berada di pusat bola seperti didalam gambarajah.

I = 0,01/6 kg m2

I = 0,01/5 kg m2

I = 0,01/4 kg m2

I = 0,01/3 kg m2

I = 0,01/2 kg m2

14.

Batang solid berjisim 2 kg dan panjangnya adalah 2 meter. Tentukan moment inertia batang jika paksi putaran terletak di tengah batang?

I = 2/7 kg m2

I =2/6 kg m2

I= 2/5 kg m2

I = 2/4 kg m2

I = 2/3 kg m²

15.

Batang AB berjisim 2 kg diputar melalui titik A ternyata moment inertia nya 8 kg.m2. Berapakah moment inertia batang AB apabila diputar melalui titik pusat O (AO = OB)?

2 kg m2

3 kg m2

4 kg m2

5 kg m2

6 kg m2

16.

What direction is the torque acting with respect to post A?

clockwise

Counter clockwise

It's in equilibrium

It's parallel so there is no torque

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DKV31083 CH6: Moment of Inertia

Total questions: 16

Worksheet time: 9mins

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