Select all that is true about the Earth's gravitational acceleration: $$ \square $$ Is about $$ 5 \mathrm{~m} / \mathrm{s}^{2} $$ $$ \square $$ Depends on the mass $$ \square $$ Always points downward $$ \square $$ Is about $$ 10 \mathrm{~m} / \mathrm{s}^{2} $$

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Let's evaluate each statement about Earth's gravitational acceleration:

1. **Is about $$ 5 \mathrm{~m} / \mathrm{s}^{2} $$**: 
   - This statement is **false**. The average gravitational acceleration on the surface of the Earth is approximately $$ 9.81 \mathrm{~m} / \mathrm{s}^{2} $$.

2. **Depends on the mass**: 
   - This statement is **false**. The gravitational acceleration experienced by an object near the Earth's surface is approximately constant and does not depend on the mass of the object. It is a property of the Earth itself.

3. **Always points downward**: 
   - This statement is **true**. Gravitational acceleration always points toward the center of the Earth, which we refer to as "downward" from the perspective of someone standing on the surface.

4. **Is about $$ 10 \mathrm{~m} / \mathrm{s}^{2} $$**: 
   - This statement is **true**. While the precise value is $$ 9.81 \mathrm{~m} / \mathrm{s}^{2} $$, it is often approximated as $$ 10 \mathrm{~m} / \mathrm{s}^{2} $$ for simplicity in calculations.

In summary, the true statements are:
- $$ \square $$ Always points downward
- $$ \square $$ Is about $$ 10 \mathrm{~m} / \mathrm{s}^{2} $$
The true statements are: - Always points downward - Is about $$ 10 \mathrm{~m} / \mathrm{s}^{2} $$

Select all that is true about the Earth's gravitational acceleration: \( \square \) Is about \( 5 \mathrm{~m} / \mathrm{s}^{2} \) \( \square \) Depends on the mass \( \square \) Always points downward \( \square \) Is about \( 10 \mathrm{~m} / \mathrm{s}^{2} \)

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