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The ratio of the rotation speed of the hour hand to the minute hand on the clock face is () a.1:12. B.1:16 c.60:1 D.1 The ratio of the rotation speed of the hour hand to the minute hand on the clock face is () a.1:12.b.1:16 c.60:1 d.12:1.
a.1:12.
The speed of minute hand on a clock is clockwise______ Times
So the answer is: 12
On the same clock, the speed of minute hand is 60 times that of hour hand () right or wrong
Wrong, it's 12 times. The minute hand goes through 60 small squares, and the hour hand goes through 5 small squares
RELATED INFORMATIONS
- 1. The minute hand on a clock turns 60 times faster than the hour hand______ (judge right or wrong)
- 2. What is the speed ratio of the hour hand to the minute hand on the clock face
- 3. On the clock face, when the minute hand rotates three times, the angle that the hour hand rotates is () A. Right angle B. acute angle C. obtuse angle D. no legal angle
- 4. How many degrees does the clock rotate from 12 o'clock to 2 o'clock? How many degrees does the minute hand rotate?
- 5. On the clock, the minute hand rotates one circle, the hour hand rotates () degrees, the minute hand rotates three circles, the hour hand rotates () degrees
- 6. On the clock face, the minute hand turns one circle, and the hour hand turns () degrees?
- 7. How many degrees clockwise can the minute hand of the clock coincide with the hour hand from the 4 o'clock position?
- 8. From seven o'clock to (), the clock hand rotates 30 degrees clockwise around o point, and the minute hand rotates () degrees clockwise around o point
- 9. When the minute hand of the clock rotates clockwise from 4 o'clock, how many degrees does the minute hand coincide with the hour hand? The answer is 130 / 10 / 11 degrees!
- 10. How many degrees does the minute hand of the clock rotate from 4 o'clock to coincide with the hour hand
- 11. On the clock face, turn the hour hand from the number "12" clockwise to "6", and record it as + 1 / 2 cycle. Then - 1 / 4 cycle means that the number of turning the hour hand from "12" counterclockwise is () I'm in a hurry to answer the question as soon as possible,
- 12. The side length of square ABCD is √ 2. If the intersection o of AC and BD is taken as the origin and OC is on the positive half axis of X axis, the coordinates of each vertex of square ABCD are
- 13. As shown in the figure, there are several points inside the square ABCD. These points and the vertices a, B, C and D of the square ABCD divide the original square into some triangles (not repeating each other) Can the original square be divided into 2008 triangles? How many points are inside the square ABCD One point is divided into four triangles, two points into six squares, and N points into (2n + 2) triangles
- 14. In the plane rectangular coordinate system, the coordinates of vertex a of RT △ OAB are (3,1). If △ OAB is rotated 60 ° counterclockwise around point O, and point B reaches point B ', then the coordinates of point B' are______ ．
- 15. As shown in the figure, in the rectangular coordinate system, given the points a (- 3, 0), B (0, 4), make continuous rotation transformation for △ OAB, and get △ 1, △ 2, △ 3, △ 4 in turn , then the coordinates of the right angle vertex of △ 2014 are______ ．
- 16. Draw the right triangle AOB rotated 180 degrees counterclockwise around point o
- 17. Take a point p outside a right triangle ABC and rotate it 180 degrees counter clockwise. How to draw?
- 18. Draw a triangle AOB and rotate 90 ° counterclockwise around o point
- 19. Rotate the triangle 90 ° anticlockwise around point a for the first time, the second time and the third time respectively Rotate the triangle 90 ° anticlockwise around point a each time to draw the first, second and third rotation figures respectively. Use C1, C2 and C3 to represent the position of point C after rotation, and use number pairs to represent it. Connect C, C1, C2, C3 and C in turn to see what the figure is. Speed up
- 20. In the plane Cartesian coordinate system, when the point a (4,2) is rotated 90 ° counterclockwise around the origin, the coordinate of the corresponding point a 'is____