Select the correct term to complete the sentences.
Newton’s first law
newton
Newton’s second law
slope
force
inertia
free fall
weight
acceleration
net force
terminal speed
acceleration due to gravity
Newton’s first law
newton
Newton’s second law
slope
force
inertia
free fall
weight
acceleration
net force
terminal speed
acceleration due to gravity
- A ____ is required to change motion.
- “Objects want to keep doing the same thing” is a way of stating ____.
- An object with more mass also has more ____.
- The total of all the forces acting on an object is called the ____.
- The ____ is the metric unit of force.
- The rate at which speed changes is called ____.
- ____ relates force, mass, and acceleration in the equation F = ma.
- A falling object under the influence of only gravity is in ____.
- The ____ on Earth is equal to 9.8 m/sec2.
- The force of gravity on an object is its ____.
- When the force due to gravity equals the force due to air resistance, the speed of a falling object is called its ____.
- The ____ of a line is found by dividing the rise by the run.
- Define the term force and give three examples of forces
- Explain why Newton’s first law is also known as the law of inertia.
- List two units for measuring mass and two units for measuring force.
- An astronaut carries a rock from the moon to Earth. Is the rock’s mass the same on Earth as on the moon? Is its weight the same? Explain.
- What is the direction of air resistance on a falling object?
- Which two forces are equal when an object is at its terminal speed?