FORCE
What is a force?
A force is a push or pull exerted on an object.
What is mass?
Mass is a measure of the amount of matter in an object.
What is acceleration?
Acceleration is the rate of change of velocity over time.
What is inertia?
Inertia is the tendency of an object to resist changes in its state of motion.
Explain a real-life application of Newton's laws.
Newton's laws are applied in designing vehicles for safety and performance.
What is the unit of force?
The unit of force is the Newton (N).
How is mass measured?
Mass is measured using a balance scale.
How is acceleration calculated?
Acceleration is calculated as a=ΔvΔta=ΔtΔv.
How does inertia relate to mass?
Inertia is directly related to mass; more massive objects have greater inertia.
How do seatbelts relate to Newton's laws?
Seatbelts provide an external force to prevent passengers from continuing in motion during a sudden stop.
How does friction affect motion?
Friction opposes motion between two surfaces in contact.
How does mass affect inertia?
The greater the mass, the greater the inertia.
What factors affect acceleration?
Mass and net force affect acceleration.
Provide an example of inertia.
A passenger lurching forward in a car that suddenly stops is an example of inertia.
Describe an example of action-reaction forces.
When you jump off a small boat, you push the boat backward as you propel yourself forward.
What is Newton's second law?
Newton's second law states that force equals mass times acceleration (F=maF=ma).
What is the difference between mass and weight?
Mass is the amount of matter, while weight is the force of gravity acting on that mass.
What is the relationship between force and acceleration?
Acceleration is directly proportional to net force and inversely proportional to mass.
How does inertia affect motion?
Inertia causes objects to remain at rest or in uniform motion unless acted upon by an external force.
How do rockets work according to Newton’s laws?
Rockets work on the principle of action-reaction; they expel gas downwards, which propels them upwards.
Give an example of balanced forces.
An example of balanced forces is a book resting on a table.
What is the unit of mass?
The unit of mass is the kilogram (kg).
Describe a scenario with constant acceleration.
A car moving at a steady speed of 10 m/s is an example of constant acceleration.
What is the relationship between inertia and Newton’s first law?
Newton's first law states that an object at rest will stay at rest, and an object in motion will stay in motion unless acted on by a force, which describes inertia.
Discuss the role of Newton's laws in sports.
Newton's laws explain how athletes accelerate, change direction, and maintain balance during physical activity.