Untitled Presentation

Open Ended

Why is understanding the concept of force important in everyday life?

Multiple Choice

Which of the following is an example of a contact force?

• Kicking a soccer ball

• Gravity pulling an apple to the ground

• Magnetic attraction between a magnet and a nail

• Earth’s gravitational pull on the Moon

Multiple Choice

Which of the following is NOT a common force described in the text?

• Weight

• Normal force

• Tension

• Magnetism

Open Ended

Explain how friction is important in everyday life, providing at least two examples based on the images and text.

Multiple Choice

Which material pair has the highest coefficient of static friction according to the table?

• Wood on wood

• Glass on glass

• Rubber on concrete

• Steel on steel

Open Ended

Describe the process used to determine the net effect of several forces acting on a body, as explained in the text.

Open Ended

Explain how the net force acting on an object at rest is determined when multiple forces are applied. Use the example of the 200 N object being pushed with 120 N.

Multiple Choice

Which forces act on an object at rest on a horizontal surface when a person pushes it with a force of 120 N to the right?

• Weight, friction force, normal force, and applied force

• Only weight and normal force

• Only friction force and applied force

• Weight, normal force, and tension

Multiple Choice

What is the resultant force when two forces of 200 N and 150 N act on a body at an angle of 60° between them?

• 304 N

• 350 N

• 200 N

• 150 N

Open Ended

Explain how to determine the direction of a resultant vector given its x and y components.

Multiple Choice

What is the magnitude of the resultant vector R if its components are 71 N in the x-direction and 54 N in the y-direction?

• 89 N

• 71 N

• 54 N

• 125 N

Multiple Choice

What are the seven base units of the International System of Units (SI) and their corresponding symbols?

• meter (m), kilogram (kg), second (s), kelvin (K), ampere (A), mole (mol), candela (cd)

• meter (m), gram (g), minute (min), kelvin (K), ampere (A), mole (ml), candela (cl)

• meter (m), kilogram (kg), hour (h), kelvin (K), ampere (A), mole (mol), candela (cd)

• meter (m), kilogram (kg), second (s), kelvin (K), ampere (A), liter (L), candela (cd)

Open Ended

Describe the importance of conversion factors in dimensional analysis and provide an example of when they are necessary.

Fill in the Blanks

1 milla =

m

Multiple Choice

Which of the following are correct conversion factors for time and volume?

• 1 h = 3600 s and 1 galón = 3.785412 L

• 1 h = 60 s and 1 galón = 3.785412 L

• 1 h = 3600 min and 1 galón = 0.785412 L

• 1 h = 60 min and 1 galón = 0.785412 L

Multiple Choice

What is the final value in meters when 16.4 feet are converted using the given conversion factors?

• 5.00 m

• 4.50 m

• 4.99 m

• 5.10 m

Open Ended

Explain the difference between absolute error and relative error in measurement.

Multiple Choice

Which of the following is NOT a type of measurement error mentioned in the slides?

• Random error

• Systematic error

• Instrumental error

• Calculation error

Fill in the Blanks

According to the rules for expressing a measurement and its error, every measurement must be followed by its

according to the International System of Units.

Multiple Choice

What is the average diameter of the disk based on the five measurements provided in the example?

• 12.2 cm

• 12.1 cm

• 12.3 cm

• 12.0 cm

Multiple Select

Select all correct statements about absolute error based on the slides.

• Absolute error is the absolute value of the difference between the measured value and the reference value.

• Absolute error can be calculated even if the true value is unknown by using the average of repeated measurements.

• Absolute error is always negative.

• Absolute error is used to express uncertainty in measurements.

Multiple Choice

Which of the following is an example of a non-contact force?

• Pushing a chair

• Kicking a football

• Magnetic attraction between two magnets

• Pulling a rope

Open Ended

After learning about forces and their types, what is one real-life example where you have observed both contact and non-contact forces acting on an object?