1. What is the measure of amount of matter in an object
2. Which of the following tools should a scientist use to measure an object in meters
3. Which of the following is a standard unit for measuring time
please help
1. B Mass
2. C tape measure
3. A second
Thank you
1. The measure of amount of matter in an object is called its mass. Mass is typically measured in units like grams (g) or kilograms (kg).
2. To measure an object in meters, a scientist would typically use a device called a ruler, specifically a meter stick or a metric tape measure. These tools are marked with a series of equal divisions representing centimeters and meters, enabling the measurement of length in meters.
3. The standard unit for measuring time is the second (s). This unit is a fundamental base unit in the International System of Units (SI) and is used worldwide for measuring time intervals.
1. The measure of the amount of matter in an object is called its mass. Mass is a fundamental property of matter and represents the quantity of matter present in an object. It is commonly measured using a balance or a scale. To find the mass of an object, you can follow these steps:
- Make sure the balance or scale is calibrated correctly.
- Place the object on the balance or scale.
- Wait until the reading stabilizes, indicating that the object is not moving.
- Read and record the mass value displayed on the balance or scale. The unit of measurement for mass is usually grams (g) or kilograms (kg).
2. To measure the length of an object in meters, a scientist should use a ruler or a measuring tape. Here's how you can use a ruler to measure an object in meters:
- Place the ruler alongside the object, aligning one end of the ruler with the starting point of the object.
- Read and record the length of the object indicated by the marking on the ruler that aligns with the opposite end of the object.
- If the length of the object exceeds the length of your ruler, you can use multiple rulers or a measuring tape to measure from different segments and then add up the measurements to find the total length.
3. The standard unit for measuring time is the second (s). The second is a base unit of the International System of Units (SI) and is defined as the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium-133 atom. To measure time accurately, scientists typically use devices such as clocks, stopwatches, or timers that are specifically calibrated to measure time in seconds.