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WorksheetsRadius Diameter
Total questions: 25
Worksheet time: 25mins
Which combination of lens parameters will give the brightest image of a faint comet?
Large diameter, short focal length
Small diameter, short focal length
Small diameter, long focal length
Large diameter, long focal length
Which atom has the largest atomic radius?
potassium
rubidium
francium
cesium
What is the relationship between the radius and diameter of a circle?
The radius is half the diameter
The radius is twice the diameter
The radius is equal to the diameter
The radius is three times the diameter
If the diameter of a circle is 10 cm, what is the radius?
5 cm
10 cm
15 cm
20 cm
Which formula correctly represents the relationship between radius (r) and diameter (d) of a circle?
d=2r
d=r/2
d=r2
d=r+2
In a scientific experiment, if the diameter of a spherical cell is measured to be 6 micrometers, what is its radius?
3 micrometers
6 micrometers
9 micrometers
12 micrometers
A wheel has a diameter of 1 meter. What is the radius of the wheel?
0.5 meters
1 meter
1.5 meters
2 meters
If the radius of a circle is doubled, what happens to the diameter?
It doubles
It halves
It remains the same
It triples
Which of the following statements is true about the radius and diameter of a circle?
The diameter is twice the radius
The diameter is half the radius
The diameter is equal to the radius
The diameter is three times the radius
In terms of radius, how can the diameter of a circle be expressed?
2r
r/2
r2
r+2
A circular garden has a radius of 4 meters. What is the diameter of the garden?
8 meters
4 meters
12 meters
16 meters
If a circle's diameter is 14 cm, what is its radius?
7 cm
14 cm
21 cm
28 cm
In a physics experiment, a circular disc has a radius of 0.2 meters. What is the diameter of the disc?
0.4 meters
0.2 meters
0.6 meters
0.8 meters
A circular track has a diameter of 400 meters. What is the radius of the track?
200 meters
400 meters
600 meters
800 meters
If the radius of a circle is 3.5 cm, what is the diameter?
7 cm
3.5 cm
10.5 cm
14 cm
Which of the following is a correct expression for the diameter in terms of radius?
d=2r
d=r/2
d=r2
d=r+2
A circular pond has a diameter of 10 meters. What is the radius of the pond?
5 meters
10 meters
15 meters
20 meters
If the diameter of a circle is 8 inches, what is the radius?
4 inches
8 inches
12 inches
16 inches
In a biology experiment, the diameter of a petri dish is 9 cm. What is the radius?
4.5 cm
9 cm
13.5 cm
18 cm
A circular table has a radius of 1.5 meters. What is the diameter of the table?
3 meters
1.5 meters
4.5 meters
6 meters
If the radius of a circle is 2.5 meters, what is the diameter?
5 meters
2.5 meters
7.5 meters
10 meters
A circular ring has a diameter of 50 cm. What is the radius of the ring?
25 cm
50 cm
75 cm
100 cm
In a geometry class, a student measures the diameter of a circle to be 18 cm. What is the radius?
9 cm
18 cm
27 cm
36 cm
If the radius of a circle is 6 inches, what is the diameter?
12 inches
6 inches
18 inches
24 inches
A circular plate has a diameter of 30 cm. What is the radius of the plate?
15 cm
30 cm
45 cm
60 cm
