Vocabulary
A push or pull
What is a force?
The overall force after all forces acting on an object are combined.
What is net force?
A hockey puck slides across smooth ice. What causes it to eventually slow down?
What is friction?
What equation represents Newton's Second Law?
What is F = ma?
What is the unit used to measure force?
What is Newtons (N)?
A force that opposes motion between surfaces in contact.
What is friction?
A box is pushed 10 N right and 4 N left. What is the net force?
What is 6N right?
What property of matter causes objects to resist changes in motion?
What is inertia?
What does the m stand for in F = ma?
What is the units used to measure mass?
What is grams (g) or kilograms (kg)?
An object's resistance to a change in its motion.
What is inertia?
A cart is pushed 15 N left and 15 N right. What is the net force?
What is 0 N?
This is another name for Newton’s 1st Law.
What is the Law of Inertia?
What does the a stand for in F = ma?
What is acceleration?
What type of contact force slows a parachute moving through the air?
What is air resistance?
A change in speed or direction (velocity) over time.
Acceleration
Two students push a cart left with forces of 20 N and 30 N. What is the net force?
What is 50 N left?
If the net force on an object is 0 N, the forces are described as this.
What are balanced forces?
A 4 kg box experiences a net force of 20 N. What is its acceleration?
What is 5 m/s2?
What unit is used to measure acceleration?
meters per second squared (m/s2)
The amount of matter in an object.
A sled is pulled forward with 40 N while friction pulls backward with 10 N. What is the net force?
What is 30 N forward?
A hockey puck would continue moving at a constant velocity forever if no unbalanced forces acted on it. This law explains why.
What is Newton's 1st Law?
A net force of 24 N causes an object to accelerate at 6 m/s². What is its mass?
What is 4 kg?
What is the word for a measurement that has both direction and magnitude?
What is a vector?