All Flashcards
What is the effect of applying an unbalanced force on an object?
The object accelerates (changes its velocity).
What is the effect of an object having a large inertial mass?
It is harder to accelerate the object.
What happens when the net force acting on an object is zero?
The object remains at rest or continues to move at a constant velocity.
What is Newton's First Law?
An object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
What is inertia?
The tendency of an object to resist changes in its state of motion.
What is an inertial frame of reference?
A coordinate system from which motion is observed that is not accelerating (moving at a constant velocity).
What is equilibrium?
When all forces acting on an object are balanced (net force = 0), the object is in equilibrium. It will either remain at rest or continue moving at a constant velocity.
What is inertial mass?
A measure of an object's resistance to changes in its motion. The more massive an object is, the harder it is to accelerate.
What is gravitational mass?
This is determined by how strongly an object is attracted to other objects due to gravity.
What are the steps to experimentally determine the relationship between net force, inertial mass, and acceleration?
- Measure mass. 2. Apply varying forces. 3. Measure acceleration. 4. Record data. 5. Plot force vs. acceleration. 6. Examine the relationship.
What are the steps to measure gravitational mass of a golf ball using a balance scale?
- Place the golf ball on one side of the balance. 2. Place known masses on the other side until balanced. 3. The known masses will equal the gravitational mass of the golf ball.
What are the steps to measure inertial mass of a golf ball using a force sensor, track, timer, and photogate?
- Apply a known force to the golf ball. 2. Measure its acceleration. 3. Use Newton's Second Law () to calculate inertial mass ().