10C3 2023 iGCSE big quiz

The refractive index of diamonds is 2.4. What is the speed of light in diamonds?

• 1.20*10^8
• 1.25*10^8
• 3.00*10^8
• 2.40*10^8

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-5

where does fertilisation occur in a plant?

• ovule
• ovary
• oviduct
• stigma

Which of these ores contain iron?

• Bauxite
• Hematite
• Malachite
• Marble

What is a characteristic of wind pollinated flowers?

• colorful and large petals
• stigma is inside of flower
• sticky pollen
• small and light pollen grains

what is a response by the body to a decrease in internal body temperature?

• blood flow speeds up
• hair erector muscles relax
• walk around and find a thermometer
• shivering

Why the black cloth will feel hotter comparing to the white cloth in the sun?

Tags

NGSS.MS-PS3-4

NGSS.MS-PS4-2

how do you measure acceleration

• change in distance/change in speed
• change in velocity/change in time
• change in force/change in resistance
• change in speed/change in distance

What is the color of a banana after adding iodine solution to it?

• red
• blue black
• green
• yellow

which feature shows that a flower may not be insect pollinated

• a. Large, colorful petals
• b. Anthers sticking out of the flower
• c. Anthers inside the flower
• d. Flower produces Nectar

What vavles in the heart are defined as being semilunar?

• Mitral and Aortic
• Aortic and bicuspid
• Aortic and pulmonary
• Aortic and Tricuspid