#gravitation
- What is the difference between mass and weight of an object . Mass is a fundamental property of an object that represents the amount of matter it contains. It is an intrinsic property and remains consta... 2
- study the entries in the following table and rewrite them putting the corrected items in a single row :gravitation 1 2 3 mass N measure of inertia weight kg zero at the center acceleration due to gravity m/s² depends on height gravitational constant Nm²/k... 2
- What is the weight on mars Answer: Weight on Mars = m × g_Mars, with g_Mars ≈ 3.7\ m/s², i.e. about 0.38 times the weight on earth. For example, a 60 kg person weighs... 2
- Weight of the person on the mars Person on Mars would weigh 37.83% its weight on earth. 1
- Take weights of five of your friends. Find out what their weights will be on the moon and the Mars. Answer: Mass stays the same; weight W = mg on the moon is about 1/6 and on Mars about 0.38 of the weight on earth (see table). Important: a... 3
- std 10th maharashtra board science part 1 gravitation notes Answer: Gravitation (Std 10 Science Part 1, Chapter 1) - solved exercise notes. 1. Match the entries and rewrite them in correct rows Quanti... 2
- g. The mass of the earth is 6 x 1024 kg. The distance between the earth and the Sun is 1.5x 1011 m. the mass of the earth, m = 6 × 10²⁴ kg Assume the mass of the sun is M distance between earth and sun , r = 1.5 × 10¹¹ m force between sun a... 1
- f. The masses of the earth and moon are 6 x 1024 kg and 7.4x1022kg, respectively. The distance between them is 3.84 x 105 km. Answer: The gravitational force between the earth and the moon is about 2.02 × 10²⁰ N. Given: m₁ = 6 × 10²⁴\ kg (earth), m₂ = 7.4 × 10²²\ kg... 1
- e. A ball falls off a table and reaches the ground in 1 s. Assuming g = 10 m/s2 , calculate its speed Answer: Speed on reaching the ground = 10 m/s; height of the table = 5 m. Given: initial velocity u = 0 (the ball just falls off), time t =... 1
- d. An object thrown vertically upwards reaches a height of 500 m. What was its initial velocity? the final velocity is zero. We know the position is 500 and acceleration is 10 Let the initial velocity = u final velocity = v v= 0 m/s s =... 1
- c. The mass and weight of an object on earth are 5 kg and 49 N respectively. What will be their values on the moon? Mass of the substance remains constant. It is the multiplication of density and volume that will remain unchanged in the whole universe. So... 2
- The mass of a spaceship is 1000 kg. It is to be launched from the earth’s surface out into free space. The correct answer is option (a) 6.4 x 10^(10 )Joules Explaination :: The energy required is given by = GMmover R = gR² × mover R (∵ g = GMo... 1
- If the distance between the earth and the sun were half its present value, the number of days in a year would have been The correct answer is 129 days option b Explaination: BY keplers third law T² ∝ R³ therefore ( T₂over T₁)²=( R₂over R₁)³ T_(1 )= 365 days, R... 1