Calculating Forces in Physics

Calculating Forces in Physics

Assessment

Interactive Video

Physics, Mathematics, Science

9th - 10th Grade

Practice Problem

Hard

Created by

Patricia Brown

FREE Resource

This video tutorial explains how to calculate the force exerted by falling pellets on a scale. It covers the problem setup, including the rate of pellet fall and their mass. The tutorial then details the calculation of force due to pellet accumulation and momentum, using principles of physics such as gravity, potential energy, and kinetic energy. The final scale reading is determined by summing the forces from accumulation and momentum.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main problem discussed in this lesson?

Determining the mass of a falling object

Calculating the force of a falling object

Calculating the speed of a falling object

Measuring the height from which an object falls

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which two forces are considered when calculating the force on the scale?

Force due to wind and force due to rain

Force due to accumulation and force due to momentum

Force due to friction and force due to air resistance

Force due to temperature and force due to pressure

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the mass of the pellets converted for calculation purposes?

From grams to kilograms

From kilograms to grams

From ounces to grams

From pounds to kilograms

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the formula used to calculate the force due to the accumulation of pellets?

Force = mass x distance

Force = mass x acceleration

Force = mass x time

Force = mass x velocity

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the acceleration due to gravity used in the calculations?

10.8 m/s²

9.8 m/s²

8.9 m/s²

11.8 m/s²

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the velocity of the pellets as they strike the scale?

5.26 m/s

6.26 m/s

8.26 m/s

7.26 m/s

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the velocity of the pellets determined?

By measuring the time taken to fall

By using the potential and kinetic energy equations

By observing the speed on a speedometer

By calculating the distance fallen

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