Gravitation Flashcards
What is the universal law of gravitation?
Every point mass attracts every other point mass with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.
True or False: Gravity is a force that only acts at very short distances.
False
Fill in the blank: The gravitational force between two objects decreases as the ________ between them increases.
distance
What is the formula for gravitational force?
F = G * (m1 * m2) / r^2
What does ‘G’ represent in the gravitational force formula?
The universal gravitational constant
Multiple choice: Which of the following factors does NOT affect the gravitational force between two objects? A) Mass of the objects B) Distance between the objects C) Color of the objects
C) Color of the objects
What is the value of the universal gravitational constant (G)?
6.674 × 10^-11 N(m/kg)^2
True or False: The weight of an object is the same as its mass.
False
How does the gravitational force change if the mass of one object is doubled?
The gravitational force will also double.
Fill in the blank: The gravitational force is always ________ between two masses.
attractive
What is the acceleration due to gravity on Earth?
Approximately 9.81 m/s²
Multiple choice: What happens to the gravitational force if the distance between two masses is halved? A) It doubles B) It quadruples C) It remains the same
B) It quadruples
What is the term for the path that an object follows as it moves under the influence of gravity?
Orbit
True or False: All objects fall at the same rate in a vacuum regardless of their mass.
True
What is the principle that states that gravitational mass and inertial mass are equivalent?
Equivalence Principle
Fill in the blank: The force of gravity can be calculated using the ________ law of gravitation.
Newton’s
What is the primary reason planets orbit the sun?
The gravitational attraction between the sun and the planets.
Multiple choice: Which scientist formulated the law of universal gravitation? A) Einstein B) Newton C) Galileo
B) Newton
How does the gravitational force between two objects change if both masses are tripled?
The gravitational force will increase by a factor of nine.
True or False: The gravitational force is stronger between two objects that are further apart.
False
What is the gravitational force between two 1 kg masses that are 1 meter apart?
6.674 × 10^-11 N
Fill in the blank: The gravitational pull of the Earth gives us our ________.
weight
What effect does gravity have on time according to general relativity?
Time runs slower in stronger gravitational fields.
Multiple choice: Which of the following is a consequence of gravity? A) Tides B) Seasons C) Both A and B
C) Both A and B
