2701 Words11 Pages

Open-ended Investigation (mass and force)

Aim: To show the relationship between Mass, the force acting on it, and acceleration by gathering data through investigations.

Hypothesis: As Mass increases, Acceleration Decreases. Therefore, Acceleration is inversely proportional to mass.

Introduction

A force is a push or pull acting upon an object, as a result of its interaction with another object. In a state of motion, an object experiences different forces which influences its movement. There are many different types of forces which act upon an object; a normal force, a gravitational force, the applied force of the object, and the force of friction.

A normal force is the force which balances the weight of an object on a surface, it travels*…show more content…*

It should comfortably travel along the path.

4. Thread a length of ticker-tape, about the same length as the cart’s distance down the path, through the ticker timer. Stick the end of the tape to the trolley.

5. Turn the ticker-timer on, and allow the trolley to accelerate down the path.

6. Measure the first two dots of the ticker tape. Record your results.

7. Measure the last two dots of the ticker tape. Record your results.

8. Find the velocity of those two measurements. Record your results.

9. Count the intervals (spaces in between dots, or ticks) in the ticker tape. Multiply the number by 0.02. That is the time measurement in acceleration.

10. Find the acceleration for the object. Record your results.

11. Create a velocity/time graph by measuring the displacement of the last five 0.02 intervals, and calculating the velocity of the object at that point.

12. Repeat steps 1-11, except adding masses to the trolley, creating different results.

a. Repeat the masses at least once, to ensure results are valid.

Results

Weight of Slotted Masses = 300g = 0.3kg. F = mg = 0.300 x 9.8 = 2.94N – Constant Force acting on the Trolleys.

The Trolley’s base mass is 778g, and the force has been kept constant by keeping the weight of the slotted masses the same.

Displacement has been measured by measuring the distance between two dots on each ticker tape.

A ticker tape inputs 50 dots/second, therefore every 0.02s, it creates a dot.

The intervals display how

Aim: To show the relationship between Mass, the force acting on it, and acceleration by gathering data through investigations.

Hypothesis: As Mass increases, Acceleration Decreases. Therefore, Acceleration is inversely proportional to mass.

Introduction

A force is a push or pull acting upon an object, as a result of its interaction with another object. In a state of motion, an object experiences different forces which influences its movement. There are many different types of forces which act upon an object; a normal force, a gravitational force, the applied force of the object, and the force of friction.

A normal force is the force which balances the weight of an object on a surface, it travels

It should comfortably travel along the path.

4. Thread a length of ticker-tape, about the same length as the cart’s distance down the path, through the ticker timer. Stick the end of the tape to the trolley.

5. Turn the ticker-timer on, and allow the trolley to accelerate down the path.

6. Measure the first two dots of the ticker tape. Record your results.

7. Measure the last two dots of the ticker tape. Record your results.

8. Find the velocity of those two measurements. Record your results.

9. Count the intervals (spaces in between dots, or ticks) in the ticker tape. Multiply the number by 0.02. That is the time measurement in acceleration.

10. Find the acceleration for the object. Record your results.

11. Create a velocity/time graph by measuring the displacement of the last five 0.02 intervals, and calculating the velocity of the object at that point.

12. Repeat steps 1-11, except adding masses to the trolley, creating different results.

a. Repeat the masses at least once, to ensure results are valid.

Results

Weight of Slotted Masses = 300g = 0.3kg. F = mg = 0.300 x 9.8 = 2.94N – Constant Force acting on the Trolleys.

The Trolley’s base mass is 778g, and the force has been kept constant by keeping the weight of the slotted masses the same.

Displacement has been measured by measuring the distance between two dots on each ticker tape.

A ticker tape inputs 50 dots/second, therefore every 0.02s, it creates a dot.

The intervals display how

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