Newton's 1st Law of Motion
What is Newton's 1st Law of Motion also known as?
The Law of Inertia
What is the formula for Newton's 2nd Law?
Force = mass X acceleration
What does Newton's 3rd Law state?
For every force acting on an object, an equal and opposite force is put back onto the first object
What is the difference between distance and displacement?
What is the definition of speed?
What is the definition of speed?
How does inertia affect an object at rest?
An object at rest stays at rest unless acted upon by an external force.
If a car has a mass of 1,000 kg and accelerates at 2 m/s/s, what is the force exerted?
2,000 N
Give an example of Newton's 3rd Law in action.
When you push against a wall, the wall pushes back with equal force
If you walk 3 km north and then 4 km south, what is your total distance and displacement?
What is the definition of velocity?
Give an example of Newton's 1st Law in everyday life
A book resting on a table will remain there until someone picks it up
How does increasing mass affect acceleration at a constant force?
Increasing mass decreases acceleration
How does this law apply to a rocket launch?
The rocket pushes down on the ground while the ground pushes the rocket up.
Can displacement be greater than distance?
No, displacement cannot be greater than distance
How is average speed different from instantaneous speed?
What happens to a moving object if no net forces act on it?
Describe a real-world application of Newton's 2nd Law.
Calculating the force needed to launch a rocket based on its mass and desired acceleration.
What happens to the forces involved in a collision according to Newton's 3rd Law?
The forces are equal in magnitude but opposite in direction.
What is the formula to calculate displacement if our diagram forms a right triangle?
Can an object have a constant speed but changing velocity?
Yes, if the direction changes
How does mass relate to inertia?
What does the term inversely proportional mean in Newton's 2nd Law.
As mass is increased, acceleration is decreased - and when mass is decreased, acceleration is increased
How does Newton's 3rd Law relate to swimming?
Swimmers push water backward to move forward.
Describe a scenario where distance and displacement are different.
Walking in a circle returns to the starting point: distance is the full circle, but displacement is zero.
How do you calculate average velocity?