9 Design - T1 Bridges - Week 1

What is the other name for Newton's first law of motion?

• Law of Inertia

• Law of Acceleration

• Law of Motion

• Law of Gravity

According to Newton's first law of motion, what happens to an object at rest if no external force is applied to it?

• It starts moving at a constant speed

• It changes color

• It remains at rest

• It disappears

What is the formula for Newton's second law of motion?

• F = 1/2ma

• F = ma

• F = m/a

• F = mv

According to Newton's second law of motion, what happens to the acceleration of an object if the force acting on it is doubled?

• The acceleration of the object will double.

• The acceleration of the object will be tripled.

• The acceleration of the object will stay the same.

• The acceleration of the object will be halved.

What is the action-reaction pair in the following scenario: A book resting on a table?

• The book exerts a force on the table and the table exerts a force on the book in the same direction

• The book exerts a force on the table and the table exerts no force on the book

• The book exerts a force on the table and the table exerts a force on the book in the opposite direction

• Gravitational force exerted by the book on the table and the equal and opposite force exerted by the table on the book

According to Newton's third law of motion, what is the relationship between the action and reaction forces?

• Equal in magnitude and same in direction

• Equal in magnitude and opposite in direction

• Proportional in magnitude and opposite in direction

• Opposite in magnitude and same in direction

What is inertia?

• Ability to move freely

• Speed of an object

• Force exerted by an object

• Resistance to change in motion

What is the action-reaction pair in the following scenario: A person pushing a wall?

• The person pushing on the wall and the wall pushing away from the person

• The person pushing on the wall and the wall not reacting at all

• The person pushing on the wall and the wall pulling the person towards it

• The person pushing on the wall and the wall pushing back on the person

According to Newton's third law of motion, what is the direction of the action and reaction forces?

• Opposite

• Random

• Up and Down

• Same

What is the unit of force in the International System of Units (SI)?

• Newton

• Kilogram

• Meter

• Second