Newtons 1st law
This term describes the tendency of an object to resist changes in its state of motion.
What is inertia?
The equation used to calculate the net force acting on an object.
What is ΣF=ma?
For ever action there is an equal and opposite reaction
What is newton's third law?
An automobile with a mass of 1000 kg accelerates at a traffic light with a force of 4000 N. What is the automobile’s acceleration?
4m/s/s
This must be true about the net force acting on an object at rest or moving at a constant velocity.
What is zero?
The net force acting on a 1200 kg car accelerating at 3.0 m/s².
What is 3,600 N?
The reason an astronaut in space can propel themselves forward by throwing a tool backward
the tool pushes back on the astronaut
What is the force of friction between a table and a block that has a normal force of 5 N and a coefficient of friction (μ) of 0.2?
1N
Between a 10kg mass and a 50kg mass, this one can change its acceleration more easily.
what is the 10kg mass?
If a tennis ball and a baseball experience the same force, this one will accelerate more.
What is the tennis ball ?
When a truck hits a resting car, this vehicle exerts the greater force.
What is the same?
A 10 kg wooden crate is resting on a level concrete floor with a coefficient of kinetic friction of 0.4. If you push the crate with a constant applied force of 60 N, what is the acceleration of the crate?
2.08 m/s/s
This is the physical quantity that serves as the measure of an object's inertia.
What is mass?
Force / mass = ?
what is acceleration
The specific force that propels a person forward while they are walking
what is the ground pushing the person
A 2.20 kg toy car has a coefficient of kinetic friction of 0.15. If the car accelerates at 4 m/s2, what is the magnitude of the horizontal pushing force applied to the car?
12.03 N
T or F: If an object’s speed or direction is changing, the forces acting on it do not cancel out.
What is true?
The acceleration of a 1000 kg automobile if a 4000 N force is applied at a traffic light
What is 4 m/s²?
On a horizontal surface, these two vertical forces are equal in magnitude if there is no vertical acceleration.
What are Normal force and Gravity?
A 2.20-kg toy car is pushed across a table. If the coefficient of kinetic friction between the car's wheels and the table is 0.15 and the car is observed to accelerate at 4m/s/s, what is the magnitude of the horizontal pushing force applied to the car?
12N