Dubai Stem Olympiad 2019-20 Round 1 | Junior Category
.
- 1.
By how much is 27/56 greater than 12/28?
- A.
3/56
- B.
39/56
- C.
17/56
- D.
5/28
Correct Answer
A. 3/56 -
- 2.
Which of the following is NOT an input device?
- A.
Printer
- B.
Keyboard
- C.
Touchpad
- D.
Microphone
Correct Answer
A. Printer -
- 3.
Which of the following contains the correct sequence to draw a rectangle?
- A.
Draw a 2cm line, turn left 90 degrees, draw a 2 cm line, turn left 90 degrees, draw a 2cm line, turn left degrees and draw a 2cm line.
- B.
Draw a 4cm line, turn right 90 degrees, draw a 2cm line, turn right 90 degrees, draw a 4cm line, turn 90 degrees and draw a 2cm line
- C.
Draw a 4cm line, draw a 2cm line, draw a 4cm line, draw a 2cm line
- D.
None of the above
Correct Answer
B. Draw a 4cm line, turn right 90 degrees, draw a 2cm line, turn right 90 degrees, draw a 4cm line, turn 90 degrees and draw a 2cm line -
- 4.
How many vertices or points are there on a pentagram?
- A.
4
- B.
6
- C.
5
- D.
7
Correct Answer
C. 5 -
- 5.
If you roll a ball along the floor, it will eventually stop rolling. What is the name of the force that causes this?
- A.
Gravitational Force
- B.
Friction
- C.
Electromagnetic Force
- D.
None of the above
Correct Answer
B. Friction -
- 6.
Which of the following is the greatest for this shape?
- A.
Number of vertices
- B.
Number of edges
- C.
Number of faces
- D.
They are all the same value
Correct Answer
B. Number of edges -
- 7.
Carol wants to cover a wall with wallpaper. An image of the wall is shown below. How many square meters of wallpaper does she need?
- A.
6.5
- B.
13
- C.
10
- D.
Not enough information
Correct Answer
C. 10 -
- 8.
What is the total value of all the interior angles in any quadrilateral?
- A.
360
- B.
180
- C.
90
- D.
It depends on which quadrilateral
Correct Answer
A. 360 -
- 9.
Which direction does a concave shape bend?
- A.
Inwards
- B.
Outwards
- C.
Horizontally
- D.
There are no bends in the shape
Correct Answer
A. Inwards -
- 10.
What is the equation of the area of this parallelogram?
- A.
(AB/2) x height
- B.
(AB+DC/3) x height
- C.
(AB+DE/2) x height
- D.
AB x height
Correct Answer
D. AB x height -
- 11.
What is the distance from the center of the circle to its edge called?
- A.
Radius
- B.
Center length
- C.
Scalar
- D.
None of the above
Correct Answer
A. Radius -
- 12.
What type of device is a temperature sensor?
- A.
Output Device
- B.
Input Device
- C.
Simple Machine
- D.
Lever
Correct Answer
B. Input Device -
- 13.
What is 9213/18426 simplified?
- A.
1/2
- B.
1/3
- C.
2/3
- D.
47/82
Correct Answer
A. 1/2 -
- 14.
If one line is a perpendicular bisector of another line, what is the angle between the two lines?
- A.
360
- B.
90
- C.
180
- D.
It can be any angle between 1 and 360
Correct Answer
B. 90 -
- 15.
A job requires 100 hours of work. If Jenny does half the work this week and Sam does half of the rest of the job next week, how many more hours of work is left over.
- A.
25
- B.
50
- C.
0
- D.
75
Correct Answer
A. 25 -
- 16.
What fraction of the shape below is shaded
- A.
1/4
- B.
3/8
- C.
2/11
- D.
1/3
Correct Answer
A. 1/4 -
- 17.
A WHILE loop in an algorithm is an example of:
- A.
Repetition
- B.
Selection
- C.
Sequence
- D.
None of the above
Correct Answer
A. Repetition -
- 18.
Which of the following is False?
- A.
A variable stays constant throughout the entire code and never changes
- B.
You can have multiple variables in one piece of code
- C.
Information assigned to a variable is stored in the computer's memory
- D.
Variables can store text or numbers if needed
Correct Answer
A. A variable stays constant throughout the entire code and never changes -
- 19.
The robot is trying to get to the finish line, he can take several possible routes on the map. The routes are repersented by the letters a,b,c,d. a represents moving 1 square to the right, b represents moving 1 square to the left, c represents moving one square up, d represents moving one square down. For example, the route aaaaaad will get the robot one square above the finish, which route below will get the robot to the finish line?
- A.
Addaaaaa
- B.
Ddaaacaa
- C.
Ddaccaa
- D.
None of the above
Correct Answer
A. Addaaaaa -
- 20.
If the clock shown below is 45 minutes slow, what is the CORRECT time after half an hour?
- A.
18:00
- B.
17:00
- C.
18:30
- D.
19:00
Correct Answer
C. 18:30 -
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Feb 05, 2020Quiz Edited by
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