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Biblioteka

Savvas 7th Grade Chapter 2 Using Mathematics in Science

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Pitanje 1
1.

On what number is the metric system based?

Pitanje 2
2.

Which is a common unit of density?

Pitanje 3
3.

What would you be most likely to measure by immersing an object in water and seeing how much the water level rises?

Pitanje 4
4.

Which of the following is the middle number in a set of data?

Pitanje 5
5.

A low percent error indicates that the result you obtained is

Pitanje 6
6.

Which term refers to how close a group of measurements are to each other?

Pitanje 7
7.

On which of the following graphs do data points yield a straight line?

Pitanje 8
8.

On a nonlinear graph, the data points are never which of the following?

Pitanje 9
9.

A line graph is used when which of the following is true?

Pitanje 10
10.

When doing a science investigation, what should be your chief concern?

Pitanje 11
11.

Weight is a measure of how much mass is contained in a given volume.

Pitanje 12
12.

The basic unit for measuring volume is the kilogram.

Pitanje 13
13.

On the Kelvin scale, water freezes at 0°C and boils at 100°C.

Pitanje 14
14.

An object’s temperature is the amount of space it takes up

Pitanje 15
15.

Scientists control changes in the responding (dependent) variable.

Pitanje 16
16.

To help you see what the data from an experiment mean, you could use a(n) graph.

Pitanje 17
17.

A point that does not fall exactly on a graph line is a(n) anomalous data point.

Pitanje 18
18.

Line graphs display data that show how the dependent variable changes in response to the independent variable

Pitanje 19
19.

Doing good preparation ahead of time helps you stay safe during science investigations.

Pitanje 20
20.
Pitanje 21
21.
Pitanje 22
22.
Pitanje 23
23.
Pitanje 24
24.

Which of the following shows the mean with the correct number of significant figures for the numbers 15.6, 14.1, 7.7, 12.9, 12.9?

Pitanje 25
25.

All systems have input, ___________________, and output.

Pitanje 26
26.

A(n) ___________________ model might include a drawing or a three-dimensional object.

Pitanje 27
27.

___________________ is the material or energy that goes into a system.

Pitanje 28
28.

Output that changes a system in some way is called __________________.

Pitanje 29
29.

A Field is defined as :

Pitanje 30
30.

Which of the following are you least likely to see represented by a safety symbol in the procedures of an investigation?

Pitanje 31
31.

When an accident occurs, the first person you should tell is any adult not your teacher.

Pitanje 32
32.

Safety symbols are pictures that alert you to possible sources of accidents in an investigation.

Pitanje 33
33.

Doing good preparation ahead of time helps you stay safe during science investigations.

Pitanje 34
34.

Scientists use models to understand things they can observe directly.

Pitanje 35
35.

Use the graph to predict the boiling time of water that has a volume greater than 2,000 milliliters.

Pitanje 36
36.

Tell me how mass and weight are alike and how they are different.

Pitanje 37
37.

Name the 3 parts of any system. For an extra point, name the 4 part that sometimes occurs