The tendency of all objects to resist any change in motion.
What is inertia?
100
According to Newton's first law of motion, a moving object that is not acted on by a an unbalanced force will...
What is remain in motion?
200
Astronauts in orbiting spacecraft appear weightless because they are in _______________ along with the spaceship.
What is free fall?
200
The path of free fall for the spacecraft.
What is c?
200
All forces act in pairs.
What is Newton's third law of motion?
300
A tennis ball, a solid rubber ball, and a solid steel ball are all dropped at the same time from the same height, which would hit the ground first? (Assume there is no air resistance.)
What is all would hit at the same time?
300
An ice skater with a mass of 65 kg moves along the ice with a constant velocity of 2.0 m/s. This is the skater's momentum.
What is 130 kg*m/s?
300
A full shopping cart pushed with light force has the least _____________ compared to a full cart pushed with hard force, an empty car pushed with light force, and an empty cart pushed with hard force.
What is acceleration?
300
The relationship between an objects acceleration and it's mass and force acting on it.
What is Newton's second law of motion?
400
A crumpled piece of paper hits the ground before a flat sheet of paper because of this.
What is air resistance?
400
This is what happens when a moving bumper car collides with a bumper car at rest.
What is momentum is transferred to the car at rest?
400
The path the spacecraft would follow if there were no gravity.
What is B?
400
Assuming 1kg=1000g, a 5kg object has less inertia than an object of: a. 4kg
b. 6000g
c. 2kg
d. 1500 g
What is 6000g or a?
500
Orbital motion is a combination of forward motion and ____________.
What is free fall?
500
A cue ball tools toward a billiard ball with a velocity of 1.0 m/s east. Both balls have identical masses. This happens to the total momentum after the two balls collide.
What is it is equal to the momentum before the collision.