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Questions and Answers
A ball is thrown upwards. Assuming air resistance is negligible, what best describes the ball's acceleration at the highest point of its trajectory?
A ball is thrown upwards. Assuming air resistance is negligible, what best describes the ball's acceleration at the highest point of its trajectory?
- Changes from upward to downward
- Zero
- Constant and upward
- Constant and downward (correct)
In an inelastic collision, both momentum and kinetic energy are conserved.
In an inelastic collision, both momentum and kinetic energy are conserved.
False (B)
State Newton's Second Law of Motion in terms of momentum (p) and time (t).
State Newton's Second Law of Motion in terms of momentum (p) and time (t).
F = dp/dt
The rate of change of angular velocity with respect to time is known as angular ______.
The rate of change of angular velocity with respect to time is known as angular ______.
Match the following terms with their corresponding definitions:
Match the following terms with their corresponding definitions:
A box is sliding down an inclined plane at a constant speed. Which of the following statements is true about the forces acting on the box?
A box is sliding down an inclined plane at a constant speed. Which of the following statements is true about the forces acting on the box?
According to Kepler's Second Law, a planet moves faster when it is farther from the Sun.
According to Kepler's Second Law, a planet moves faster when it is farther from the Sun.
What is the relationship between work done and kinetic energy, as stated by the Work-Energy Theorem?
What is the relationship between work done and kinetic energy, as stated by the Work-Energy Theorem?
The force exerted by a surface on an object in contact with it is called the [blank] force.
The force exerted by a surface on an object in contact with it is called the [blank] force.
Which of the following scenarios best represents a perfectly inelastic collision?
Which of the following scenarios best represents a perfectly inelastic collision?
Flashcards
Displacement
Displacement
Change in position of an object.
Velocity
Velocity
Rate of change of displacement with respect to time.
Acceleration
Acceleration
Rate of change of velocity with respect to time.
Mass
Mass
A measure of an object's resistance to acceleration.
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Momentum
Momentum
Product of mass and velocity, a measure of an object's quantity of motion.
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Kinetic energy
Kinetic energy
Energy due to motion.
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Potential energy
Potential energy
Energy due to position or configuration.
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Newton's First Law
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 a force.
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Newton's Second Law
Newton's Second Law
The acceleration of an object is directly proportional to the net force acting on it, is in the same direction as the net force, and is inversely proportional to the mass of the object.
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Newton's Third Law
Newton's Third Law
For every action, there is an equal and opposite reaction.
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