Earth Science
Mayon is what type of volcano?
Strato volcano/ compositive volcano
What is the first organ to develop in the embryo?
heart
electron
What law of motion explains why an object remains in its original motion in the absence of external force?
First Law of Motion/ Law of Intertia
Isaac Newton
What mainly determines the color of the star?
temperature
Where does the exchange of gasses between plants and the atmosphere take place?
leaves
What biomolecule is made up of amino acids?
protein
A 1000kg car travels at a speed of 20m/s. At what speed must a 3000kg truck travel to have the same momentum?
0.667m/s
After Sun, what is the nearest star on earth?
Proxima Centauri
It is a tropical cyclone that develops in the Atlantic and northeast pacific.
hurricane
Why do you feel tired after the test?
a. all the mental effort strains the brain.
b. during the test your brain drew extra energy in the form of sugar in your blood. After the test your body feels tired because it lacks this vital blood sugar.
c. you were tense your muscles feel tired - not your brain.
c. you were tense your muscles feel tired - not your brain.
Which of the following is not a mixture
a. fog
b. butter
c. marshmallow
s. salt
s. salt
A salesman pushes a 500kg cart with a horizontal force 125N. What is the acceleration of the cart (ignore friction)?
0.25m/s^2
As a mass of air rises,
a. its temperature increases and pressure increases.
b. its temperature increases and pressure decreases.
c. its temperature decreases and pressure decreases.
d. its temperature decreases and pressure increases.
c. its temperature decreases and pressure decreases.
How many hours does earth take to complete one revolution?
8760hrs
What would you feel if someone stuck a finger into your brain and waggled it about?
a. unbearable agony - the worst pain in the world
b. you'd feel hot and cold shivers all over your body.
c. nothing because the brain cannot feel touch.
c. nothing because the brain cannot feel touch
What is the formula of the compound formed by ammonium NH4+1 and sulfate SO4-2?
NH4(SO4)2
A person runs 800m at an average speed of 6m/s and then the next 800m at an average speed of 8m/s. What is the total time taken?
233.333
An element X contains 20 protons, 5 neutrons, and 20 electrons. The mass number of the element is ____.
25
The mass number or the nucleon number of an atom is equal to the number of protons plus neutrons in its nuclues.
While climbing a mountain, George picked up a rock that contains shells in it. He classified the piece of rock as sedimentary. Do you agree with him?
a. No, because there are no sedimentary rocks in the mountain.
b. No, because sedimentary rocks do not contain shells in them.
c. Yes, because sedimentary rocks are formed in the sea where shells are found.
d. Yes, because shells are found in all types of rocks.
c. Yes, because sedimentary rocks are formed in the sea where shells are found.
Which of the following can best cure ringworm?
a. antibacterial ointment
b. antifungal soap
c. antiinflammatory medicine
d. antivirus liquid
b. antifungal soap
Which can be disgested in the mouth?
a. beans
b. butter
c. egg
d. rice
d. rice
About 80g of blood is pumped from the heart during each heartbeat. The blood starts at rest has a speed of about .05m/s in the aorta. If the pumping takes .15s, what is the magnitude of the average force on the blood?
.27N
Which of the following undergoes endothermic reaction?
a. explosion of gun powder
b. digestion of food
c. melting of oil
d. burning of sugar.
c. melting of oil