Dubai Stem Olympiad 2019-20 Round 1 | Intermediate Category

1. These device allows the user to record or send their voice into the computer

Monitor

Microphone

Speaker

Printer

2. Molecules in this phase of matter are tightly packed together

Solid

Liquid

Gas

None of these

3. Which of the following are not an example of a lever being used?

Tweezers

Scissors

Tables

Nutcrackers

4. The part of a computer that allows the user to view information on a screen.

Mouse

CPU

Motherboard

Monitor

5. What is the area of the following image?

80.64 cm2

72.24 cm2

81.25 cm2

72.4 cm2

6. A truck is carrying mango juice, tomato juice, and passion fruit juice bottles in a ratio of 4 : 4 : 3. If there are 1020 passion fruit juice bottles, then how many juice bottles in total are there?

2805

3740

3700

3555

7. A name for a small picture or image representing a folder or a program

Graphic

RAM

CPU

Icon

8. What is the difference between weight and mass?

Mass is the quantity of substance while weight is a force

Mass is a force while weight is the quantity of substance

They are the same

Mass is heavier than weight

9. Which of the following can 3D printers be used for?

Prosthetics

Aircraft parts

Art pieces

All of the above

10. Round 13.746 to the nearest tenth.

13.7

14

10

13.75

11. Which key is used to temporarily allow the typing of a capital letter?

Control key

Shift key

Backspace key

Caps lock key

12. An ecosystem is a community of living organisms and their ________ environment.

Non living

Mental

Habitat

Physical

13. Which of the following are in order from smallest to largest?

3/10, 3/11, 3/12, 3/13

5/12, 3/12, 2/12, 1/4

1/2, 5/8, 3/4, 13/16

2/7, 8/34, 4/12, 3, 10

14. Find the greatest number that will divide 43, 91 and 183 so as to leave the same remainder in each case.

4

7

9

13

15. What is the function of a gear?

Causes a load to move by applying force

Spins in circles and transfers electricity from one gear to another

Transmit rotary motions as well as power from one shaft to another

Rotates on a fixed point only

16. Which of the following is not malicious?

Virus

Cookie

Trojan

None of the above

17. Which of the following are correct?

125 - (- 465) - 2530 > -365 - (-82) -1600

555 + 6402 * 8092870 < 211*3

38943 -2907 + (-4230) < 23541 - (-3666) - 4567

34 * 10 + 2895 - 321 > 3542 - (-158) + 428

18. What sensor can be used to measure the average kinetic energy particles in a substance?

Temperature Sensor

PH Sensor

Optical Sensor

Sound Sensor

19. What is the full form of OLED?

Organic Light Emitting Diode

Occipital Light Emitting Diode

Organic Laser Emitting Device

Orange Light Emitting Device

20. What is the function of a floppy disk?

Produce audio output that can be heard by the listener

To store and retrieve digital information

A small drive used in computers for data transfer

Stores data for short-term use

Dubai STEM Olympiad 2019-20 Round 1 | Intermediate Category