Mastering Physics: Chapter 3

A speedometer normally measures __________.

The difference between speed and velocity involves ________.

Galileo discovered that when air resistance can be neglected, all objects fall with the same _______.

Each second, a ball rolling down an inclined plane picks up ___________.

When we're talking about how quickly "how fast" changes, we're talking about _______.

In its first second of free fall, a dropped softball will fall a vertical distance of ________.

A ball freely falling at 20 m/s will in the next second have a speed of _________.

The vertical height attained by a basketball player who achieves a hang time of a full 1 s is...

A pot falls from a ledge and hits the ground 45 m below. The speed with which it hits the ground is

A ball is thrown upwards. Neglecting air resistance, what initial upward speed does the ball need to remain in the air for a total time of 10 seconds?

A car accelerates at 2 meters per second per second. Assuming the car starts from rest, how much time does it need to accelerate to a speed of 30 m/s?

If a projectile is fired straight up at a speed of 10 m/s, the total time to return to its starting position is about

If a projectile is fired straight up at a speed of 10 m/s, the time it takes to reach the top of its path is about

In each second of fall, the distance a freely falling object will fall is

It takes 6 seconds for a stone to fall to the bottom of a mine shaft. How deep is the shaft?

Starting from rest, the distance a freely falling object will fall in 0.5 second is about

A ball is thrown upwards and caught when it comes back down. In the presence of air resistance, the speed with which it is caught is always

At one instant a heavy object in air is moving upward at 50 meters per second. One second later its speed is approximately

If a car accelerates from rest at 2 meters per second per second, its speed 3 seconds later will be about

A car accelerates at 2 meters/s/s. Assuming the car starts from rest, how far will it travel in 10 s?

A car maintains a constant velocity of 100 km/hr for 10 seconds. During this interval its acceleration is

An object covers a distance of 8 meters in the first second of travel, another 8 meters during the next second, and 8 meters again during the third second. Its acceleration in meters per second per second is approximately