Newton’s 1st Law
This property explains why you feel pushed to the side when a car makes a sharp turn
What is inertia?
According to Newton's Second Law, if you keep the force the same, an object with a larger mass will have a smaller one of these
What is its acceleration?
his law states that every action force has a reaction force that is equal in strength and opposite in this
What is direction?
A push or a pull is the simple definition for this term
What is a force?
This measurement is calculated by dividing the distance traveled by the time it took to travel
What is speed?
Also called the Law of Inertia, this law explains why a soccer ball doesn't move until a player kicks it
What is Newton's First Law?
To increase the acceleration of a bowling ball without changing its mass, you must do this to the force you apply
What is increase the force?
A rocket moves upward because its engines push hot gas downward. The gas pushing back on the rocket is this type of force
What is the reaction force?
The formula for force.
What is F=MA?
The force of air resistance acting on a parachute is an example of this force that opposes motion
What is friction?
To change an object's state of motion, such as making it move or stop, you must apply one of these
What is an unbalanced force?
An experiment shows that it is harder to push a full grocery cart than an empty one, demonstrating that more mass requires more force to achieve the same what
What is acceleration?
When you sit in a chair, your body exerts a downward force on the chair. The chair exerts an equal, upward force on your body . This is an example of Newton's law about this.
What are action-reaction pairs?
In an arm-wrestling match where neither person's arm is moving, the forces are said to be this
What are balanced?
This property, sometimes called an object's "oomph," is conserved in a closed system like two bumper cars colliding
What is momentum?
Of a bowling ball, a tennis ball, a basketball, and a golf ball, this object has the most inertia
What is a bowling ball?
In an experiment where mass is constant, applying a force of 10 N results in an acceleration of 5 m/s². This would be the acceleration if the force were doubled to 20 N
What is 10 m/s²?
When a cannon fires a cannonball, the cannon moves backward. This backward movement is known as this
What is recoil (or the reaction force)
An escalator is 90 m long and travels at 1.0 m/s. This is how long it would take for a person to ride the entire length
What is 90 seconds?
We are held on Earth by gravity because we are very close to it. The sun's gravity doesn't pull us off the planet because of its immense what
What is distance?
A car suddenly brakes, and the loose items on the dashboard fly forward. This happens because the items are continuing their forward motion due to this principle
What is inertia?
Two people push two identical boxes with the same mass. Person A pushes with 100 N of force and Person B pushes with 200 N of force. This person's box will accelerate faster
Who is person B?
When a firefighter aims a powerful hose, the water shoots forward (the action). The firefighter must brace against this corresponding reaction .
What is the hose pushing backward on the firefighter?
Using the formula for force, this would be the acceleration of an 800 kg object if a 2400 N force were applied to it
What is 3 m/s²?
A car traveling at a high speed takes longer to stop after the brakes are applied than a car at a low speed. This relationship is between speed and this distance
What is braking distance?