"Integration of this Chapter" Quality and Density PPT

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"Integration of this Chapter" Quality and Density PPT

High School Entrance Examination Focus Experience

1. (2018 Shandong Zaozhuang High School Entrance Examination) The factor that determines the mass of an object is ()

A. The amount of matter contained in an object

B.The shape of the object

C. The state of the object

D. The spatial location of the object

2. (2018·Hunan Huaihua High School Entrance Examination) In the performance, the naive "giant panda" made people laugh. This giant panda is made of a special aluminum alloy material. Its height is 2.35 m and its mass is only 10 kg. Which property of aluminum alloy does it utilize? ()

A. Small mass B. Small density

C.Small size D.Small hardness

3. (2018·Shandong Binzhou High School Entrance Examination) Picture A is an image of the density of water changing with temperature in the range of 0~10 ℃. Picture B is a schematic diagram of the temperature distribution of lake water in northern winter. Based on the image and other properties of water, the following analysis judgments are wrong of is()

A. When the temperature is equal to 4 ℃, the density of water is maximum

B. In the range of 0~4 ℃, water has the property of shrinking with heat and expanding with cold.

C. The temperatures at A, B, C, D, and E from top to bottom in the schematic diagram are 4 ℃, 3 ℃, 2 ℃, 1 ℃, and 0 ℃ respectively.

D. Without the abnormal expansion of water, the water at the bottom and surface of the lake may freeze at the same time, making it difficult for aquatic organisms to survive the winter.

4. (2018·Shandong Dezhou High School Entrance Examination) Xiao Ming uses a balance, beaker and measuring cylinder to measure the density of milk. The figure below shows his main operation process in the order of A, B, C and D.

(1) As shown in Figure A, when adjusting the balance of the balance, the pointer is to the left, and the balance nut should be moved to ______.

(2) The density of milk is measured to be ______kg/m3.

(3) The measured density is ______ higher than the actual density of milk.

5. (2018·Heilongjiang High School Entrance Examination) If a piece of ice with a mass of 20 g melts into water, its mass will be ______ (choose "get bigger", "get smaller" or "unchange"). After turning into water, the volume of water is __________ cm3. (ρwater=1.0×103 kg/m3)

6. (2018 Bayannur High School Entrance Examination in Inner Mongolia) Xiaoli wanted to know the density of a ceramic teapot at home, so she used the lid to conduct an experiment.

(1) Place the pot lid on the left plate of the adjusted balance, put the weight on the right plate and move the wandering code. When the balance is balanced, the mass of the weight and the position of the wandering code are as shown in Figure A, then the pot lid The mass is ________ g.

(2) As shown in Figure B, immerse the lid into a tilted beaker filled with water, then pour the overflowing water into the measuring cylinder, and measure the volume of water to be 20 cm3. Then the density of the lid is_ _______g/cm3.

(3) Use this method to measure the density of the pot lid _________ than the true value (optional fill in "too large" or "too small").

(4) Xiaoli then used existing equipment to explore water and drew a graph showing the relationship between mass and volume, as shown in A in Figure C. After analysis, she found that because she mistakenly regarded the total mass of the beaker and water as the mass of water, graph A did not pass through the origin of the coordinates. It can be deduced from this: the graph of the relationship between the mass and volume of water should be ______ (optional "B", "C" or "D" in Figure C).

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Update Time: 2024-07-06

This template belongs to Physics courseware People's Education Edition Physics for Grade 8, Volume 1 industry PPT template

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