10. you push back on the pavement and your skateboard goes forward - which of newtons 3 laws is this? 11. what is newtons 3rd law of motion? 12. a falling object accelerates until a force slows and stops its acceleration. what is this force called? 13. if you go from the earth to the moon which property changes - mass or weight? 14. what is the difference between mass and weight?

Question

Accepted Answer

### 10.
# Explanation:
## Step1: Analyze the situation
When you push back on the pavement (action force), the pavement pushes you (and your skateboard) forward (reaction force). This is in line with Newton's 3rd law.
# Answer:
Newton's 3rd law.

### 11.
# Brief Explanations:
Newton's 3rd law of motion states that for every action, there is an equal and opposite reaction.
# Answer:
For every action, there is an equal and opposite reaction.

### 12.
# Brief Explanations:
When a falling object accelerates until a force slows and stops its acceleration, this force is air - resistance (or drag). As the object falls, the force of gravity pulls it down ($F_g=mg$, where $m$ is mass and $g$ is the acceleration due to gravity). As its speed increases, the air - resistance force ($F_d$) acting in the opposite direction (upwards) also increases. When $F_d = F_g$, the net force $F_{net}=F_g - F_d=0$, and the object stops accelerating (reaches terminal velocity).
# Answer:
Air - resistance (or drag).

### 13.
# Brief Explanations:
Mass is the amount of matter in an object ($m$), and it is an intrinsic property of the object. It does not change with location. Weight ($W = mg$) is the force of gravity acting on an object. The acceleration due to gravity on the moon ($g_{moon}\approx1.62\ m/s^{2}$) is less than on the Earth ($g_{earth}\approx9.8\ m/s^{2}$). Since $W = mg$ and $m$ is constant, $W$ changes.
# Answer:
Weight.

### 14.
# Brief Explanations:
Mass ($m$) is a measure of the amount of matter in an object. It is measured in kilograms ($kg$) and is an intrinsic property (does not change with location). Weight ($W$) is the force of gravity acting on an object. It is calculated as $W=mg$ (where $g$ is the acceleration due to gravity) and is measured in newtons ($N$). It changes with the gravitational field strength (e.g., different on Earth and the moon).
# Answer:
Mass is the amount of matter (in $kg$, intrinsic), weight is the force of gravity ($W = mg$, in $N$, changes with $g$).

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QUESTION IMAGE

Question

Explanation:

10.

Step1: Analyze the situation

Answer:

11.