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Kobotan [32]
4 years ago
6

Identify each statement as either true or false.

Physics
2 answers:
Dmitriy789 [7]4 years ago
8 0
1 is false. Weigth = mass x gravity not Weight x gravity
3 is false. weight is different not mass
4 i think true

Andrei [34K]4 years ago
3 0

Answer:

1.False

2.False

3. False

4.True

5. True

Explanation:

1. Its false because

weight of an object= mass x gravity

therefore,

mass= \frac{weight}{gravity}

2. Its  False

water which is close to moon get attracted by The Moon. Therefore the water of the sea which is in front of the Moon bulges towards it and due to inertia water on the opposite side also bulges.

3. Its false

Gravity on jupiter is 24.79 \frac{m}{s^{2}}

and Gravity on earth is 9.8 \frac{m}{s^{2}}

we know that mass of an object is given as,

mass= \frac{weight}{gravity}

It means mass is inversely proportional to gravity, since gravity on jupiter is greater than the gravity on earth therefore the mass of an object  earth is greater than the mass on earth.

4. Its true

The Sun, along with the entire solar  system, moves around the galaxy with the a speed of 828\times 10^3 \frac{km}{hr} in a circular orbit.

5. Its True

Without gravity there would be no atmosphere surrounding earth because without gravity everything including water will move into outer space.

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A spring on a horizontal surface can be stretched and held 0.5 m from its equilibrium position with a force of 60 N. a. How much
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Answer:

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Explanation:

Hooke's law states that the extension of a material is directly proportional to the applied force provided that the elastic limit is not exceeded. Mathematically;

F = ke where;

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From the formula, k = F/e

F1/e1 = F2/e2

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Work done = 1/2×120×5.5²

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b) work done in compressing the spring 1.5m from its equilibrium position will be gotten using the same formula;

Work done = 1/2ke²

Work done =1/2× 120×1.5²

Works done = 60×1.5²

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