You're measuring the length of a table, and you find it to be 1.78 meters. If you want to round this measurement to the nearest decimeter, what value should you record?

You're calculating the average speed of a car during a road trip, and the speedometer reads 62.3 mph. To represent this value with one decimal place, what should you round it to?

You are measuring the weight of a bag of sugar, and the scale shows 4.85 kg. If you need to round this weight to the nearest tenth of a kilogram, what value should you use?

In a science experiment, you measure the temperature of a liquid to be 27.6°C. If you need to round this measurement to the nearest degree Celsius, what should you

In scientific notation, which of the following represents the speed of light in a vacuum (approximately 299,792,458 meters per second)?

A bacterium is about 0.0000025 meters long. In scientific notation, this length is written as:

The diameter of a human hair is about 0.000075 meters. In scientific notation, this diameter is written as:

What is the result of adding 3.2 x 10^4 m to 1.5 x 10^3 m?

When you multiply 2.5 x 10⁵ kg by 4.0 x 10² m/s², what is the result in scientific notation?

If you add 2.7 x 10⁹ J to 1.3 x 10⁹ J, what is the result in scientific notation?

Which among the following does not belong to the group?

This error occurs when measurements are rounded to a specific number of decimal places or significant figures, leading to slight discrepancies.

This are errors that are introduced by the experimenter, such as reading a scale incorrectly or making mistakes during data recording.

Which of the following statements is true regarding accuracy and precision in measurements?

If you obtain the following results: 5.21 g, 5.22 g, 5.23 g, 5.21 g, and 5.22 g, what can you conclude about the accuracy and precision of your measurements? if the standard measurement is 5.21g.

In an experiment, you measure the length of a rod and obtain the following results: 22.56 cm, 22.55 cm, 22.54 cm, and 22.57 cm. The accepted value for the length of the rod is 22.60 cm. What can you say about the accuracy and precision of your measurements?

In an archery competition, a skilled archer consistently hits the target near the bullseye but not in the exact center. What can be said about the archer's accuracy and precision?

A weather station reports the daily temperature as 72.5°F, and the temperature is actually 73.2°F. What can be said about the accuracy and precision of the temperature measurement?

In a laboratory experiment, a student repeatedly measures the density of a substance and consistently obtains the same value, which is different from the accepted value. What can be concluded about these measurements?

Which of the following statements accurately describes the role of precision in scientific measurements?

What is the formula for calculating percentage error in a measurement?

A student measures the length of a table as 120 cm, while the actual length is 125 cm. What is the percentage error in the measurement?

If the mass of an object is measured as 450 grams, but the true mass is 500 grams, what is the percentage error in the measurement?

A student measures the time it takes for an object to fall and records 2.0 seconds, while the actual time is 1.8 seconds. What is the percentage error in the measurement of

A thermometer reads a temperature of 25°C, but the actual temperature is 24°C. What is the percentage error in the temperature measurement?

Which of the following is a scalar quantity?

A vector quantity has which of the following characteristics?

What is an example of a vector quantity?

A car traveled 150 kilometers west. Is 150 kilometers a scalar or vector quantity?

Which of the following is a vector quantity associated with motion?

If a person's weight is 70 kilograms, what is their mass in pounds (1 kilogram = 2.20462 pounds)?

A marathon race is approximately 42.195 kilometers long. What is the distance of the marathon in miles (1 kilometer = 0.621371 miles)?

A boat is moving north at a speed of 10 m/s, and a current is flowing east at 5 m/s. What is the resultant velocity of the boat?

A hiker walks 4 km east and then 3 km north. What is the total displacement of the hiker?

A person walks 30 meters east and then 40 meters west. What is their total displacement?

A boat is sailing at 10 m/s north, and a current is pushing it at 4 m/s south. What is the boat's actual velocity?

A force of 20 N is applied at an angle of 30 degrees above the horizontal. What are the horizontal and vertical components of the force?

You walk 3 km north, then 4 km west, and finally 2 km south. What is your final displacement from the starting point?

A car travels at 60 mph in a direction 30 degrees east of north. What is the car's northward velocity component?

Two forces of 10 N and 15 N act on an object at an angle of 60 degrees to each other. What is the magnitude of their resultant force?

A plane is flying at 300 km/h in a direction 45 degrees south of east. What is its eastward velocity component?

Solve for the resultant angle of a force directed 46 degrees in a southeast direction.

A car is traveling west at 20 m/s, and a strong crosswind is pushing it to the north at 10 m/s.what is the reference angle of the resultant velocity of the car?

A ship is sailing at a constant speed of 15 m/s due east. What is the x-coordinate of its velocity?

A pilot flies an airplane at a speed of 250 m/s in a direction 35 degrees south of west. What is the y-coordinate of the airplane's velocity?

Two forces of 15 N and 20 N act at an angle of 60 degrees to each other. What is the x-coordinate of the resultant force?

If a vector has only an x-component and no y-component, what can you conclude about the direction of the vector?

If the x-component of a vector is zero, what can you conclude about the direction of the vector?

A vector has an x-component of 12 units and a y-component of 5 units. What is the angle it makes with the positive y-axis?

In a right triangle, the hypotenuse represents the: