# Physics

Labs for College Physics: Mechanics Worksheet Experiment 2-1

Labs for College Physics: Mechanics Worksheet Experiment 2-1

Section: ___________________

## EXPERIMENT: Specific Heat Capacity of Metals

DATA TABLE 1:

 Object Description – First Metal Second Metal Room temperature, oC Mass of water in calorimeter, 25 ml = 25 g Mass of first metal object Starting temperature of water (room temp) Starting temperature of object (room temp) Highest final temperature of water & object

DATA TABLE 2 – Part 1:

 Objects Mass (g) T initial T final DT C (cal/g oC) Water in calorimeter First metal

Percent error of your experimentally derived value: _____________

DATA TABLE 2 – Part 2:

 Objects Mass (g) T initial T final DT C (cal/g oC) Water in calorimeter Second metal

Percent error of your experimentally derived value: _____________

Questions:

A.    Why is it a good idea to start with room temperature water in the calorimeter?

B.     Why did we ignore the calorimeter in our calculation, although it is listed in the original equation?

C.     When eating apple pie, you may have noticed that the filling seems to be much hotter than the crust. Why is this? What can you conclude about the specific heat of the fillings vs. the specific heat of the crust?

D.    Is the heat exchange between the metal and the water in the calorimeter by radiation, conduction or convection? Why?

Motion

As you work through the steps in the lab procedure, record your experimental values and the results

on this worksheet. Use the exact values you record for your data to make later calculations.

Part I: Data

Complete Table 1. Record all data to three decimal places (e.g., 4.000 or 6.325 or 0.000). Do not

Table 1

Calculated

Initial AT Time Position

Settings (m) (s) (m) Describe

Position (x) vs. Time graph

20

Velocity (v) vs. Time graph

x = 0:00 m

v = 5:00 m/s 40

a = 0:00 m/s2

Acceleration (a) vs. Time graph

50

Position (x) vs. Time graph

20

Velocity (v) vs. Time graph

x = 0:00 m

v = 10:0 m/s 40

a = 0:00 m/s2

Acceleration (a) vs. Time graph

50

Labs for College Physics: Mechanics Worksheet Experiment 2-2

Part I: Questions

Use the correct unit abbreviation.

By observing the Position vs. Time graph in Step 2 of the instructions, what physical quantity does

the slope of this line correspond to?

By observing the Position vs. Time graph in Step 2 of the instructions, what is the value of the

slope of this line?

By observing the Velocity vs. Time graph in Step 3 of the instructions, what physical quantity does

the slope of the line correspond to?

By observing the Velocity vs. Time graph in Step 3 of the instructions, what is the value of the

slope of this line?

Labs for College Physics: Mechanics Worksheet Experiment 2-3

Part II: Data

Complete Table 2. Record all data to three decimal places (e.g., 4.000 or 6.325 or 0.000). Do not

Table 2

Calculated Calculated

Initial AT Time Position Velocity

Settings (m) (s) (m) (m/s) Describe

Position (x) vs. Time graph

20

Velocity (v) vs. Time graph

x = 0:00 m

v = 0:00 m/s 40

a = 1:00 m/s2

Acceleration (a) vs. Time graph

50

Position (x) vs. Time graph

20

Velocity (v) vs. Time graph

x = 0:00 m

v = 0:00 m/s 40

a = 2:00 m/s2

Acceleration (a) vs. Time graph

50

Labs for College Physics: Mechanics Worksheet Experiment 2-4

I observed that as time increased, the velocity vector decreased in length.

True

False

I observed that as time increased, the acceleration vector stayed the same length.

True

False

Part II: Questions

Use the correct unit abbreviation.

By observing the Velocity vs. Time graph in Step 2 of the instructions, what physical quantity does

the slope of this line correspond to?

By observing the Velocity vs. Time graph in Step 2 of the instructions, what is the value of the

slope of this line?

By observing the Acceleration vs. Time graph in Step 3 of the instructions, what is the value of

the slope of this line?

By observing the Acceleration vs. Time graph in Step 3 of the instructions, what is the value of

the acceleration (a) of this graph?

Labs for College Physics: Mechanics Worksheet Experiment 2-5

Part III: Data

Complete Table 3. Record all data to the nearest WHOLE NUMBERS. Do not include units in

Table 3

Readings from the Graphs

Initial Dist. Time Vel. Acc.

Settings (m) (s) (m/s) (m/s2) Describe

Position (x) vs. Time graph

Velocity (v) vs. Time graph

x = 0:00 m

v = 10:0 m/s

a =

Motion

As you work through the steps in the lab procedure, record your experimental values and the results

on this worksheet. Use the exact values you record for your data to make later calculations.

Part I: Data

Complete Table 1. Record all data to three decimal places (e.g., 4.000 or 6.325 or 0.000). Do not

Table 1

Calculated

Initial AT Time Position

Settings (m) (s) (m) Describe

Position (x) vs. Time graph

20

Velocity (v) vs. Time graph

x = 0:00 m

v = 5:00 m/s 40

a = 0:00 m/s2

Acceleration (a) vs. Time graph

50

Position (x) vs. Time graph

20

Velocity (v) vs. Time graph

x = 0:00 m

v = 10:0 m/s 40

a = 0:00 m/s2

Acceleration (a) vs. Time graph

50

Labs for College Physics: Mechanics Worksheet Experiment 2-2

Part I: Questions

Use the correct unit abbreviation.

By observing the Position vs. Time graph in Step 2 of the instructions, what physical quantity does

the slope of this line correspond to?

By observing the Position vs. Time graph in Step 2 of the instructions, what is the value of the

slope of this line?

By observing the Velocity vs. Time graph in Step 3 of the instructions, what physical quantity does

the slope of the line correspond to?

By observing the Velocity vs. Time graph in Step 3 of the instructions, what is the value of the

slope of this line?

Labs for College Physics: Mechanics Worksheet Experiment 2-3

Part II: Data

Complete Table 2. Record all data to three decimal places (e.g., 4.000 or 6.325 or 0.000). Do not

Table 2

Calculated Calculated

Initial AT Time Position Velocity

Settings (m) (s) (m) (m/s) Describe

Position (x) vs. Time graph

20

Velocity (v) vs. Time graph

x = 0:00 m

v = 0:00 m/s 40

a = 1:00 m/s2

Acceleration (a) vs. Time graph

50

Position (x) vs. Time graph

20

Velocity (v) vs. Time graph

x = 0:00 m

v = 0:00 m/s 40

a = 2:00 m/s2

Acceleration (a) vs. Time graph

50

Labs for College Physics: Mechanics Worksheet Experiment 2-4

I observed that as time increased, the velocity vector decreased in length.

True

False

I observed that as time increased, the acceleration vector stayed the same length.

True

False

Part II: Questions

Use the correct unit abbreviation.

By observing the Velocity vs. Time graph in Step 2 of the instructions, what physical quantity does

the slope of this line correspond to?

By observing the Velocity vs. Time graph in Step 2 of the instructions, what is the value of the

slope of this line?

By observing the Acceleration vs. Time graph in Step 3 of the instructions, what is the value of

the slope of this line?

By observing the Acceleration vs. Time graph in Step 3 of the instructions, what is the value of

the acceleration (a) of this graph?

Labs for College Physics: Mechanics Worksheet Experiment 2-5

Part III: Data

Complete Table 3. Record all data to the nearest WHOLE NUMBERS. Do not include units in

Table 3

Readings from the Graphs

Initial Dist. Time Vel. Acc.

Settings (m) (s) (m/s) (m/s2) Describe

Position (x) vs. Time graph

Velocity (v) vs. Time graph

x = 0:00 m

v = 10:0 m/s

a =

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