Newton’s Laws
This law states that an object remains at rest or in uniform motion unless acted on by a net force.
What is Newton’s First Law?
A push or a pull acting on an object.
What is a force?
The rate of change of velocity.
What is acceleration?
A diagram showing all forces acting on an object.
What is a free body diagram?
Seat belts reduce injury by increasing this during a collision.
What is stopping time?
This law explains the relationship between force, mass, and acceleration.
What is Newton’s Second Law?
The force that pulls objects toward the Earth.
What is gravity?
The SI unit of acceleration.
What is m/s²?
Arrows in a free body diagram represent this.
What are forces?
Friction is helpful when walking because it prevents this.
What is slipping?
This law states that for every action there is an equal and opposite reaction.
What is Newton’s Third Law?
The force that opposes motion between two surfaces in contact.
What is friction?
When velocity changes due to direction but not speed, this still occurs.
What is acceleration?
This force always points downward in a free body diagram.
What is weight (gravitational force)?
Rockets move forward because of this law.
What is Newton’s Third Law?
The formula associated with Newton’s Second Law.
What is F = ma?
The force exerted by a surface perpendicular to the object in contact.
What is the normal force?
An object moving at constant velocity has this net force.
What is zero net force?
A free body diagram should include forces acting on the object, not forces exerted by it.
What is true?
Heavier objects require more force to accelerate because of this property.
What is mass?
Which Newton’s law explains why you feel pushed back when a car accelerates forward?
What is Newton’s First Law?
The force transmitted through a string, rope, or cable.
What is tension?
If net force increases and mass stays constant, acceleration will do this.
What will increase?
Used to analyze motion using Newton’s laws.
What is a free body diagram?
The net force on an object moving at constant speed in a straight line.
What is zero?