Investigating the Stability of Blocks
Planning
I am going to investigate the stability of blocks by placing them on
to a board and raising it until they fall.
The evidence I will need to collect is: the height and centre of mass
for each block and the angle at which they fall.
I will need to use five regular blocks, the board I will use to raise
the blocks must be flat and level and likewise so must the surface I
am working on.
I will use my scientific knowledge of center of mass to predict at
what point the block will fall over. I will raise the board until the
block falls over and then I will record the angle at which it falls. I
will vary the height of the block each time, everything else should
remain the same. I must make sure that the table and board are flat. I
can do this using a level. I will need to take into account that the
angle will vary each time due to human error. I will tip each block
three times and the average out my results. This way the chance of a
large human error is reduced and the results will be more accurate
than just one single try. I predict that the tallest block will fall
over at the acutest angle.
I will use the idea of centre of mass in this experiment. I know that
when the centre of mass is outside the base of an object it will fall
over. So the lower the centre of mass is to the ground, the more
stable it will be. This is why I predict that the tallest block will
fall over at the acutest angle.
I will raise the board up slowly; making sure it is rising at an even
pace. I will use trigonometry to calculate the angle at which the
block falls.
I will use the formula Sin-1 = O÷H.
E.g.
I will use trigonometry to calculate the angle because it is more
6x6x6 cube and see if I can find a pattern. When I have found a
Rolling a Car down a Ramp Investigation PLANNING When planning my experiment, I will need to take into consideration. the following points: -Fair testing -Equipment -How many results will I get? -What range of variables I will experiment with I will be investigating, by varying the height of the summit of the ramp. is raised off the ground, if the average speed increases or decreases.
* Amount of sugar solution in each test tube. * The potatoes have to have the same mass.
* I will then use a small pile of books and set the ramp up at the
Since the first Africans arrived in what is now present day America in the 1500s, there has been reaffirming data supporting the importance of community to people of African descent. Despite large efforts to destroy this aspect of the African experience, many African Americans have maintained their kinships especially when the foundation is birthed from ethnic parallels. As a result of this affirmation, Dr. Mary Pattillo’s assertion on the present day black middle class and their commitment to restoring their community of North Kenwood- Oakland in her book, Black on the Block is no surprise. However, what is shocking is that the same declaration cannot be said for the African American middle class during what Dr. Pattillo deemed the ‘Black
So the experiment will be based upon the movement of water. The first potato chip will be placed in a zero percent solution. I believe that this will increase the mass. I believe this because the zero percent solution has a lower concentration than the cell sap inside the potato. The potato takes on the water through osmosis and the cell pushes out from inside the cell making it swell and become more rigid.
boards. If any of you are willing to try one you should check out some of the
In the experiment these materials were used in the following ways. A piece of Veneer wood was used as the surface to pull the object over. Placed on top of this was a rectangular wood block weighing 0.148-kg (1.45 N/ 9.80 m/s/s). A string was attached to the wood block and then a loop was made at the end of the string so a Newton scale could be attached to determine the force. The block was placed on the Veneer and drug for about 0.6 m at a constant speed to determine the force needed to pull the block at a constant speed. The force was read off of the Newton scale, this was difficult because the scale was in motion pulling the object. To increase the mass weights were placed on the top of the ...
When the air resistance force on a free-falling object is equal to the pull. of gravity, the object will reach its terminal velocity, i.e. it cannot fall any faster. According to Newton's Second Law, mg - F = ma. in this case, the resultant falling force of the ball minus the air. resistance force is equal to the mass of the ball multiplied by its acceleration).
The size of this depends on the mass of the object and the size of the
I am going to begin by looking into going up in 0.1cm from 0cm being
In experiment 5, we are learning about density and specific gravity in measurements. Density is measured by mass divided by volume in order to get the ratio of the mass of an object to its volume. Specific gravity, on the other hand, is the density of a substance divided by the density of water and will cancel out the units in order to get a unitless measurement. Mass and Volume can be measured in two different ways, first mass can be calculated by directly placing it on the triple beam scale directly, or by weighing the difference. Volume can be calculated by displacement in the graduated cylinder or by calculating its dimensions. In this experiment, the objectives were to calculate the density of a solid by measuring its mass and volume,
In my experiment, I will use an overall volume of 50 cm³ of 2moles of
should I say if you make it to the top because if you can not fix each level you
The mean of two perpendicular measurements was taken. 3. The hanger with appropriate amount of slotted mass was put on the tile. Use the balance to measure the total mass m. 4.