Chapter 2
State three states of matter
solid, liquid, gas
When you drop an object, it falls to the ground, why?
Gravity of Earth acted on the object
Name three examples of non-metal
carbon, hydrogen , nitrogen, neon, helium, sulphur, chlorine, silicon ...........
State all the medium that a sound wave can travel
solid, liquid, gas
"When life gets you down do you wanna know what you've gotta do? Just keep swimming. Just keep swimming" Which movie character say this quote ?
Dory
What is the process when gas turn to liquid ?
Condensation
Name all the planets in Solar System in sequence
Mercury, Venus, Earth, Mars, Jupiter , Saturn, Uranus, Neptune
State two differences between metal and non-metal
strength, malleable, ductile, conductor of heat and electricity, magnetic
State two characteristics of surface whereby sound can reflected well
flat, smooth
Who was the first person to walk on Moon?
Neil Armstrong
What cause the formation of snow ?
cold weather
1. Calculate the weight of object an adult who has mass 65kg
2. Calculate the mass of a motorcycle that has a weight of 1800N
650 N ; 180kg
What is the colour change of litmus paper when it dip in a baking soda ?
turns blue
Name the metals that found in Earth core
iron and nickel
Facebook is the champion of social media platform worldwide. What is the second commonest social media platform in the entire world ?
Youtube
What are the elements that form calcium chlorate?
calcium, chlorine, oxygen
Broadcast : " High tide at Teluk Tak Ada Nama occur at 11am today."
What is the estimate time for the next low tide and next high tide at the same place.
5pm, 11pm today
Why alloys are stronger than pure metal
Arrangement of atoms with different sizes
What is the name of the water reptile fossil that lead to the idea of continental drift that proposed by Sir Alfred Wegener ?
Mesosaurus
Mary has four daughters, and each of her daughters has a brother. How many children does Mary have?
Five—each daughter has the same brother.
State the chemical formula of sodium hydroxide.
NaOH
What is meant by "dissipation of energy"?
Wasted energy spread to surrounding
Explain why universal indicator is more useful than litmus?
Universal indicator show the range of pH value of substance while litmus only tell the whether the substance is acid or alkali
Poh Yang stands nearby a cliff, the distance between Poh Yang and the cliff is about 500meter, he claps his hand and it take about 3 seconds for Poh Yang to hear his echos. What is the time it takes the echo to travel from the cliff wall to Poh Yang .
1.5 seconds
The unicorn is the national animal of which country?
Scotland