แผ่นงานPhysical Science: Forces and Newton's Law- PHS.5
คำถามทั้งหมด: 15
Illustrate your answer: Draw a diagram representing a satellite orbiting Earth. Add three arrows to the diagram to indicate the effects of
A. Inertia
B. Gravity
C. The path you would predict results from the effects of inertia and gravity.
LABEL the arrows: A. Inertia B. Gravity C. Path.
Evaluate: “If gravity causes everything to fall with the same acceleration,” a friend asks, “then why does a crumpled piece of paper fall faster than an uncrumpled one?” How would you answer?
Compare and contrast:
1. static friction
2. sliding friction
3. rolling friction.
Explain: Newton’s first law of motion states that an object moves at a constant velocity unless an unbalanced force acts on it. This means that a moving object will continue to move in a straight line at a constant speed unless an unbalanced force acts on it. If an object is at rest, its velocity is zero and it stays at rest unless an unbalanced force acts on it. You might have seen the law of inertia without even knowing it. (Think about the examples that we discussed in class.) Give a discriptive explanation of an example we discussed. You may upload images to assist in explaining your answer.
Illustrate your answer: Draw a diagram indicating the path of a ball:
1. The ball is placed on the edge of a table and allowed to fall to the floor.
2. The ball is rolled rapidly across the table and falls onto the floor.
Show your work: If a 2-kg ball is thrown through the air at 20 m/s, what is the momentum of the ball?
Think: How is something "weightless?" Give your response.
Essential Terminology: When an object moves in a circle, ________acts to accelerate the object toward the center of that circle.
terminal velocity
centripetal force
air resistance
momentum
Essential Terminology: The force exerted by air on a moving object is called ____________.
Air resistance
Momentum
Static Friction
Gravity
Essential Terminology: ________is the force that every object in the universe exerts on every other object.
Air resistance
Gravity
Inertia
Friction
Essential Terminology: A property of a moving object resulting from its mass and velocity is _____________.
Weight
Distance
Momentum
Net Force
Essential Terminology: An object's ______ is the measure of the force of gravity on that object.
Mass
Weight
Force
Lenght
Essential Terminology: The largest velocity reached by a falling object is its __________.
Sliding friction
Static Friction
net force
Terminal velocity
Recognize: The phrase "to every action there is an equal and opposite reaction" is
Newton's First Law
Newton's Second Law
Newton's Third Law
Recognize: Which law explains the following: A net force acting on an object causes the object to accelerate in the direction of the force.
Newton's First Law
Newton's Second Law
Newton's Third Law
แป้นคำตอบPhysical Science: Forces and Newton's Law- PHS.5
คำถามทั้งหมด: 15
centripetal force
Air resistance
Gravity
Momentum
Weight
Terminal velocity
Newton's Third Law
Newton's Second Law