Viewing Sections of a Solid by Using Shadows

Q. Draw the top, front, and side view of the following 3D objects.

(a)



(b)

[3 MARKS]

Q. The shadow of a ball is the shape of a ______.

1. cone
2. circle
3. cylinder
4. cube

Q.

Examine if the following are true statements:
(i) The cube can cast a shadow in the shape of a rectangle.
(ii) The cube can cast a shadow in the shape of a hexagon.

Q.

Question 19
When a torch is pointed towards one of the vertical edges of a cube you get a shadow of a cube in the shape of
a) Square
b) Rectangle but not a square
c) Circle
d) Triangle

Q. Question 1
A bulb is kept burning just right above the following solids. Name the shape of the shadows obtained in each case. Attempt to give a rough sketch of the shadow. (You may try to experiment first and then answer these questions).

Q.

A cube can cast a shadow in the shape of a pentagon.

1. True

2. False

Q. Question 2
Here are the shadows of some 3-D objects, when seen under the lamp of the overhead projector. Identify the solid (s) that match each shadow. (There may be multiple answers for these!)

Q. The following figure shows a source of light (L), a solid (S) and its shadow (P) on a screen (M).

The shape of (P) was observed to be a circle. What could possibly be the shape of (S)?

1. A rectangle
2. A triangle
3. A sphere
4. A cube

Q.

Identify the given views of the block?

Q.

The shape of shadow of a circular pipe can be a rectangle.

1. True

2. False

Q.

Can you think of creating a shape that would give a circular shadow if held in one way and a rectangular shadow if held in another way?

Q. The following is the shadow of a 3-D object.

Which of these objects does the shadow belong to?

1. 
2. 
3. 
4. 

Q. With respect to the given figure, match the following views (1 - 3) with their descriptions (i - iii)




Views:
1)
2)

3)

Descriptions
i) Top view
ii) Front view
iii) Side view

1. 1) - ii); 2) - i); 3) - iii)
2. 1) - ii); 2) - iii); 3) - i)
3. 1) - iii); 2) - i); 3) - ii)
4. 1) - i); 2) -ii); 3) - iii)

Q.

Draw the top, front and side view for the figure shown above. [3 MARKS]

Q.

There is a shadow of $3-\mathrm{D}$ object when seen under a lighted bulb. Identify the solid(s) that match the shadow. (There may be multiple answers for these )

A rectangle

Q.

A lighted bulb is kept just right above the following solids. Name the shape of the shadow obtained in each case. Attempt to give a rough sketch of the shadow. (You may try the experiment first and then answer the question.)

Q.

After school, you were watching a shadow play on the TV. So you thought of playing a shadow game with Emma. You guys went to your room and switched off the light and took a torch.
You found a Rubik's cube and got its shadow on a wall by putting torch light from behind. The shadow is a _____ dimensional projection of the Rubik's cube.

1. Zero

2. One

3. Two

4. Three

Q.

There is a shadow of $3-\mathrm{D}$ object when seen under a lighted bulb. Identify the solid(s) that match the shadow. (There may be multiple answers for these )

A square

Q.

(a) Draw the front, top and side view of a cone.

(b) Here are the shadows of some 3-D objects when seen under the lamp of an overhead projector. Identify the solids (s) that match each shadow. (There may be multiple answers for these)

[4 MARKS]

Q.

A lighted bulb is kept just right above the following solids. Name the shape of the shadow obtained in each case. Attempt to give a rough sketch of the shadow. (You may try the experiment first and then answer the question.)

Q. A ball can cast a shadow in the shape of a ________ .

1. cone
2. circle
3. cylinder
4. cube

Q. How many possible nets of a cube can be drawn?

1. 11

Q.

Identify a dice if its front, top and side views are as shown in the figure.

1. 

2. 

3. 

4. 

Q. Nets of a sphere can be made.

1. False
2. True

Q.

Which of the following can be shadows of the cylinder?

1. Circle

2. Rectangle

3. Triangle

4. Hexagon

Q. A bulb is kept burning just right above the ball. Name the shape of the shadow obtained.

1. Ball
2. Ellipse
3. Hemisphere
4. Circle

Q.

The top view of the Sun is circle.

1. True

2. False

Q.

A lighted bulb is kept just right above the following solids. Name the shape of the shadow obtained in each case. Attempt to give a rough sketch of the shadow. (You may try the experiment first and then answer the question.)

Q. What is the shadow obtained when a Rubik Cube is kept exactly below the glowing bulb?

1. Circle
2. Square
3. Triangle
4. Rectangle

Q. If you look at this object from the top, what will you see?