Newton's Laws
An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.
What is Newton's First Law (Inertia)?
A force of attraction between two masses, often observed as weight on Earth.
What is Gravity/Gravitational Force
An object thrown due to force.
What is projectile?
A box is being pushed with a force of 10 N to the right and a frictional force of 10 N to the left.
What is balanced forces?
An upward force of air that opposes gravity.
What is air resistance?
The acceleration of an object depends on the mass and the force acting on it.
F=ma
What is Newton's Second Law?
A force that opposes motion between two surfaces in contact.
What is Friction/Frictional Force
An object falling under the influence of gravity.
What is free fall?
A 50 N force is pushing a box to the right, and a 70 N force is pulling the box to the left. What is the net force on the box?
What is 20 N?
A force that one object puts on another when two objects rub past each other.
What is friction?
For every action, there is an equal and opposite reaction.
What is Newton's Third Law?
A push or pull on an object, measured in Newtons (N).
What is force?
Objects with greater mass require more force to achieve the same ________ as lighter objects.
What is acceleration?
An elevator has a weight of 5000 N and an upward force of 6000 N from the cables. What is the net force, is it balanced or unbalanced, and what will happen to the elevator?
What is 1000N, unbalanced, and upward?
Occurs when an object moves through a liquid or gas.
What is fluid friction?
The tendency of an object to resist changes in motion.
What is Inertia?
The sum of all forces acting on an object
What is the Net Force?
The acceleration of an object moving in a circular path, directed towards the center of the circle.
What is centripetal acceleration?
A water bottle rocket has a mass of 2.5 kg. When launched, it accelerates upward at 12 m/s². F=?
What is 30N?
Occurs when an object rolls over a surface.
What is rolling friction?
A bird pushes down on the air with its wings in order to fly.
What is Newton's 3rd law?
Any force that causes an object to move in a circle acting towards the center of the circle.
What is centripetal force?
The strength of an object's motion.
What is momentum?
A student carries a backpack with a mass of 6 kilograms. What is the weight of the backpack on Earth, where the acceleration due to gravity is 9.8 m/s²?
What is 58.8N?
Occurs when solid surfaces slide over each other.
What is sliding friction?