Unit 3: Force And Motion

Multiple Choice

Which of the following best describes linear momentum?

• The rate of change of velocity

• The product of mass and velocity

• The force acting on an object

• The distance traveled per unit time

Open Ended

Why do you think understanding force and motion is important in our daily lives?

Multiple Choice

According to Newton's First Law of Motion, what happens to an object at rest if no unbalanced force acts on it?

• It stays at rest

• It starts moving

• It accelerates

• It changes direction

Multiple Choice

What does it mean for forces to be balanced according to Newton's First Law of Motion?

• The object will accelerate

• The object will change direction

• The object will remain at rest or move with constant velocity

• The object will stop moving

Multiple Select

Which of the following statements are correct about force?

• Force is a vector quantity

• Force has only magnitude

• The standard unit of force is Newton

• 1 N = 1 kg m/s²

Multiple Choice

Which type of force acts perpendicular to and away from the surface?

• Friction

• Normal

• Tension

• Gravity

Multiple Select

Which of the following are true about an object in equilibrium?

• It is always at rest

• It can be moving at constant velocity

• The net force on it is zero

• It is always accelerating

Multiple Choice

What is the value of acceleration due to gravity (g) on Earth as used in the gravitational force formula?

• 9.8 m/s²

• 10 m/s²

• 8.9 m/s²

• 9.81 m/s²

Multiple Choice

A 5 kg object is on Earth. What is the gravitational force acting on it?

• 49 N

• 5 N

• 9.8 N

• 50 N

Multiple Choice

Which of the following forces is responsible for opposing the applied force when a book is pushed rightward across a desk?

• F_norm

• F_grav

• F_frict

• F_app

Open Ended

Reflecting on what you have learned about Newton's Laws of Motion and linear momentum, how do you think these concepts apply to real-world situations or problems you encounter?

Multiple Choice

Which of the following learning outcomes did you find most challenging or interesting in this unit on Force and Motion?

• State and explain all the Newton’s Laws of Motion.

• Calculate and describe motion using Newton’s Laws and other laws associated with them.

• State and explain the concept of linear momentum.

• None of the above