Gravitational Effects on Earth and Space Bodies
Physics ⇒ Earth and Space Physics
Gravitational Effects on Earth and Space Bodies starts at 8 and continues till grade 12.
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See sample questions for grade 9
Describe how gravity affects the motion of comets in the solar system.
Describe how gravity affects tides on Earth.
Describe what would happen to Earth's orbit if the Sun's mass suddenly decreased.
Explain why objects weigh less on Mars than on Earth.
A 5 kg object is on a planet where g = 15 m/s². What is its weight?
A 60 kg astronaut weighs 588 N on Earth. What is the value of g on Earth used in this calculation?
A student drops a ball from a height of 5 meters on Earth. Ignoring air resistance, what is the speed of the ball just before it hits the ground? (Use g = 9.8 m/s²)
Describe what would happen to Earth's orbit if the Sun's mass suddenly decreased.
Which of the following best describes mass? (1) The amount of matter in an object. (2) The force of gravity on an object. (3) The speed of an object. (4) The volume of an object.
Which of the following best describes weight? (1) The amount of matter in an object. (2) The force of gravity on an object. (3) The volume of an object. (4) The density of an object.
Which of the following best explains why astronauts feel weightless in orbit? (1) There is no gravity in space. (2) They are too far from Earth. (3) They are in free fall around Earth. (4) Their mass is zero.
Which of the following is a correct unit for gravitational force? (1) Newton (2) Joule (3) Watt (4) Meter
Fill in the blank: The force of gravity between two objects depends on their ______ and the distance between them.
Fill in the blank: The force that causes objects to fall towards the center of the Earth is called ______.
Fill in the blank: The gravitational force between two objects becomes weaker as the ______ between them increases.
Fill in the blank: The gravitational force between two objects is proportional to the product of their ______.
True or False: Gravity is responsible for the formation of stars and planets.
True or False: The gravitational force between two objects depends only on their distance.
True or False: The gravitational force between two objects increases as the distance between them increases.
True or False: The gravitational force between two objects is inversely proportional to the square of the distance between them.
