Forces
What is the name of the force that slows objects down?
Friction
How do you calculate speed?
Distance/Time
What does a flat line on a distance-time graph indicate?
No Motion
What is Newton's First Law also known as?
The Law of Inertia
What is the proper unit for Force?
Newtons (N)
If a car travels 100 meters in 5 seconds, what is its speed?
20 m/s
In a speed-time graph, what does a slope represent?
acceleration
Which of Newton’s Laws can describe why a semi truck would roll faster down a hill compared to a bicycle?
Newton's Second Law
What is the net force if a 10 N force to the right is balanced by a 10 N force to the left?
0 N
What is the formula for calculating force?
F = ma
How do you determine the total distance traveled from a distance-time graph?
the change in the y-coordinate
Give an example of Newton’s Third Law.
A student pushing off the table to push their chair back to stand up. A rocket ship. A balloon being let go of.
What is the netforce of the block drawn on the board?
5 N to the right
Calculate the acceleration if a car speeds up from 20 m/s to 50 m/s in 10 seconds.
3 m/s/s
What does a steeper slope on a distance-time graph indicate about speed?
Higher speed
When two objects collide, is the mass or size of the object more significant?
The mass
What is the difference between balanced and unbalanced forces?
Balanced forces do not change an object's motion, while unbalanced forces do?
If an object has a mass of 20kg and an acceleration of 5 m/s/s, what is the force?
100 Newtons (N)
What does it mean when the line on a speed-time graph is horizontal?
Constant Speed
What formula describes the relationship between force, mass, and acceleration in Newton's Second Law?
F =ma (Force = mass X acceleration)