ISA grade 9

Which statements are supported by the data in the table?( choose two answers)

• Planets with greater mass are usually more oblate than planets with less mass

• larger planets are usually more oblate than smaller planets

• Denser planets are usually more oblate than less dense planets

the forces acting at the equator of a planet affect how oblate a planet is.

Which of these statements is consistent with the data shown in the table?

• planets that rotate slowly are more likely to be oblate

• planets that rotate quickly are more likely to be oblate

• there is no apparent relationship between rotational speed and oblateness

• the oblateness of the planet changes as its rotational speed varies with the seasons

Model planes are designed to be flown by remote control. the table above shows the specifications of each model .

Which model has the greatest wing span ?

• Humminbird

• falcon

• Hawk

• Eagle

Which of these describes a property of the Teflon fabric shown in the diagram ?

• Teflon repels water molecule

• Teflon repels all type of liquids

• Teflon absorbs water and stops it from passing all the way

• The gaps in Teflon are only just large enough for single water molecule to pass through

Which of these statements explain why a zigzag pattern controls speed on steep hills?

• Gravitational potential energy is reduced

• The force exerted by the board on the snow is reduced

• Additional resistance is created when the board pushes more snow

• Kinetic energy is converted to gravitational potential energy at a greater rate

The percentage of energy generated from renewable sources in both India and China has decreased.

Which of these factors would contribute to this decline?

• Increased use of wood as an energy source

• increased availability of technologies such as solar cells

• increased generation of energy using coal and gas

using non renewable fossil fuel as an energy source produces gases.

Which of the following gases is produced by the use of fossil fuel and is considered to be a danger to the environment

• Argon

• Oxygen

• Nitrogen

• Carbon dioxide

The tracks left an the moon surface in 1969 are likely to still be visible on the moon today .

Which of these best explains why the tracks might be visible on the Moon Surface?

• The moon has less gravity than the Earth

• The Moon has less erosion forces than the Earth

• The soil on the Moon is different from the soil on the Earth

• The light on the moon is different from the light on the Earth

Astronauts who walked on the Moon collected rock samples and brought them back to Earth .

What fact can be determined studying these samples when back on Earth ?

• The current temperature on the moon surface

• the composition of the moon surface

• the age of the moon surface

Which car won the race?

• A

• B

• C