T2 SCIENCE REVISION

1.Look at the picture and state whether the following statements are true or false.

A. i. is in the penumbra region. B. iii. is facing total eclipse. C. iv. and v. are facing partial eclipse. D. ii. is in the penumbra region. E. v. is in the umbra region.

• a. A - True, B - True, C - False, D - False, E - True

• b. A - False, B - True, C - True, D - True, E - false

• b. A - False, B - True, C - True, D - True, E - True

• b. A - False, B - True, C - True, D - True, E - True

2. A spotlight shines on a girl on a stage.

• A

• B

• C

• D

John dropped a football from the same height onto four types of floors. He measured how high the ball bounced on each floor.


How high was the biggest bounce? On which floor did the ball bounce the least?

• A) 100

• B) 120

• C)130

• D) 140

A school is planning to teach students about sustainable living. Which project would best illustrate the use of renewable resources?

• A) A tour of a local coal power plant

• B) A workshop on how to plant and care for a vegetable garden

• C) A visit to a museum with exhibits on mineral extraction

• D) A class on the history of oil drilling

A classmate says a lightbulb uses only electricity and doesn't affect Earth's resources. Do you agree? Why or not? .

• A. Yes, lightbulbs are a clean source of energy

• B. No, electricity generation often uses resources like coal or water.

• C. No, lightbulbs are made of glass and metal.

• D. I don't know.

A diagram shows a flashlight with a glowing bulb and batteries. Which best explains how the flashlight works? . .

• A. Chemical energy in the batteries is directly converted to light.

• B. Chemical energy in the batteries is converted to electrical energy, which then produces light.

• C. Thermal energy from the batteries heats the bulb, causing it to glow

• D. Sound energy from the circuit vibrates the bulb, producing light

7. If you discover a fossilized shell on a beach today, what inference can you make about the history of that area?

• A) The area has always been a beach

• B) The area was once covered by water

• C) The area was once a desert

• D) The area was once a rainforest

. Look at the following image of a triangular prism separating white light into a spectrum of colours (red, orange, yellow, green, blue, indigo, violet).

• A. The prism heats up the light, causing it to separate into colours.

• B. The prism changes the speed of light, separating the colours.

• C. The prism absorbs some colours and allows others to pass through.

• D. The prism bends different colours of light by different amounts, creating the spectrum

A guitar string vibrates faster when plucked harder. How does this affect the sound produced by the string?. .

• A. The sound will be louder, but the pitch will remain the same

• B. The sound will be softer, and the pitch will be lower.

• C. The sound quality will change, but the pitch and loudness will not be affected.

• D.The sound will be higher in pitch (sound sharper), and it might also be louder

10. A community wants to reduce its reliance on non-renewable resources, which action could it take?

• A) Build more coal-fired power plants

• B) Increase the use of natural gas for heating homes

• C) Install solar panels on buildings

• D) Expand the mining of minerals