Physical Science Chapter 2 Homework

Imagine an experiment in which a 8 lb bowling ball and a 10 lb bowling ball are dropped from the fifth floor at the same time. The heavier ball will reach the ground first.

In the equation v=d/t; v represents

The weight of a 50 kg box is closest to

The attractive force a 70 kg person exerts on Earth is much, much smaller than the force Earth exerts on the person.

Everything that happens in the universe can be traced to interactions of

The tendency of a moving object to remain in unchanging motion in the absence of an unbalanced force is called

The momentum of an object remains the same unless an unbalanced force acts on it.

If an unbalanced force applied to an object doubles, then

You should "follow through" when hitting a ball because

Astronauts experience a weightless condition when they are in orbit.

A car traveling at 20 mph on a curved exit ramp has a constant velocity.

The newton is a unit of

The pound is an English unit of measure; its SI counterpart is the

Newton's second law states that if an unbalanced force acts on an object, it will move at constant velocity.

Gravity is an attractive force between

A block of iron is transported to the Moon. Which of the following is true?

The force of gravity near the surface of Earth is 9.8 m/s2.

The reason a moving object slows down is that its force of motion gradually runs out.

A Boy on a skateboard pushes off the ground with his foot. He and the skateboard accelerate down the sidewalk due to the force

When you roll a ball across the floor, it comes to a stop because you are no longer exerting a force on it.

A heavy object and a light object are dropped from rest at the same time in a vacuum. The heavier object will reach the ground

If you consider the total distance and total time for a trip, you are calculating a(an)

Ignoring air resistance, the velocity of a falling object

An object accelerates when it slows or its direction of movement changes.

From the equation w = mg, it is apparent that weight is a(an)

A cannon ball and a bowling ball were dropped at the same time from the top of a building. At the instant before the balls hit the sidewalk, the cannon ball has greater

The mass of a 100 N sack of seed is closest to

Suppose that a rock is swinging in a circle when some string is let out so that the length doubled as the same speed is maintained. The force now exerted on the string is

A 250 g ball travels at a velocity of 40 m/s. Its momentum is

If you double the mass of an object while an unbalanced force remains constant,