|
 Forces and their Effects 30 Flashcards |
Start
|
|
What is the primary effect of gravity on objects on Earth? |
Card: 1 / 30 |
|
|
Gravity pulls objects towards the center of the Earth, causing them to fall when dropped. |
Card: 2 / 30 |
|
|
Fill in the blank: The weight of an object is the measure of the force of gravity pulling on its ___. |
Card: 3 / 30 |
|
|
 Mass |
Card: 4 / 30 |
|
|
True or False: Objects in a space station appear weightless because there is no gravity acting on them. |
Card: 5 / 30 |
|
|
False. Objects in a space station appear weightless because both the astronauts and the station are in free fall towards Earth at the same rate. |
Card: 6 / 30 |
|
|
Riddle: I am a force invisible yet felt, keeping you grounded and planets in motion. What am I? |
Card: 7 / 30 |
|
|
 Gravity |
Card: 8 / 30 |
|
|
Explain how gravity governs the motion of planets. |
Card: 9 / 30 |
|
|
Gravity attracts planets towards the Sun, maintaining their orbits through the balance of gravitational pull and their inertia. |
Card: 10 / 30 |
|
|
Fill in the blank: Gravity is responsible for the ___ and the orbits of planets around the Sun. |
Card: 11 / 30 |
|
|
Tides |
Card: 12 / 30 |
|
|
What is free fall and how is it related to gravity? |
Card: 13 / 30 |
|
|
Free fall is the motion of an object falling under the influence of gravity alone, without any other forces acting upon it. |
Card: 14 / 30 |
|
|
Multiple Choice: Which of the following best describes gravity? A) A force that pushes objects apart B) A force that attracts objects towards each other C) A type of electromagnetic force D) A force that only affects large masses. |
Card: 15 / 30 |
|
|
 Unlock all Flashcards with EduRev Infinity Plan Starting from @ ₹99 only
|
|
|
|
B) A force that attracts objects towards each other |
Card: 16 / 30 |
|
|
What is the equation used to calculate weight based on mass and gravitational field strength? |
Card: 17 / 30 |
|
|
Weight is calculated using the equation: Weight = mass (m) × gravitational field strength (g). |
Card: 18 / 30 |
|
|
Fill in the blank: Near the Earth's surface, gravitational field strength (g) is approximately ___ N/kg. |
Card: 19 / 30 |
|
|
10 |
Card: 20 / 30 |
|
|
True or False: The mass of an object changes when it is taken to the Moon. |
Card: 21 / 30 |
|
|
False. The mass of an object remains the same regardless of location, but its weight changes. |
Card: 22 / 30 |
|
|
Riddle: I pull you down to the ground, but you cannot see me. What am I? |
Card: 23 / 30 |
|
|
Gravity. |
Card: 24 / 30 |
|
|
How does gravitational force between two masses change with their distance? |
Card: 25 / 30 |
|
|
The gravitational force increases if the masses are closer together and decreases if they are further apart. |
Card: 26 / 30 |
|
|
Fill in the blank: The gravitational force between two objects is proportional to their ___ and the ___ between them. |
Card: 27 / 30 |
|
|
Masses, distance |
Card: 28 / 30 |
|
|
What happens to an object's weight when it is moved from Earth to the Moon? |
Card: 29 / 30 |
|
|
The weight decreases due to the lower gravitational field strength on the Moon, but the mass remains unchanged. |
Card: 30 / 30 |
|
|
Completed! Keep practicing to master all of them. |
Restart
|
