8.1 – Investigating Force, Mass and Acceleration Relationships (Leaving Cert Physics): Flashcards

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8.1 – Investigating Force, Mass and Acceleration Relationships
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Newton's second law formula

F=maF = ma

FF, mm, aa meanings in F=maF = ma

Force (N), mass (kg), acceleration (m/s²)

Part A: relationship between force and acceleration

a∝Fa \propto F when mass is constant

Part A: effect of doubling the force

Acceleration also doubles

Part A: expected graph of aa vs FF

Straight line through the origin

Part B: relationship between mass and acceleration

a∝1ma \propto \frac{1}{m} when force is constant

Part B: what remains constant

The accelerating force

Part B: expected graph of aa vs 1m\frac{1}{m}

Straight line through the origin

Safety precaution for this experiment

Place cushion/paper on floor to catch falling equipment

Error source: friction effects

Runway friction and pulley friction

Solution to compensate for friction

Slightly raise one end of the runway

Part A: what creates the accelerating force

Hanging mass in the scale pan

Part A: how to increase the accelerating force

Transfer masses from trolley to scale pan

What does straight line through origin prove

True proportionality relationship

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