Front

The SI unit of force is the

Back

newton.

Front

Which of the following relationships is correct? 1 N = 1 kg, 1 N = 1 kg·m, 1 N = 1 kg·m/s, 1 N = 1 kg·m/s²

Back

1 N = 1 kg·m/s²

Front

What happens when an unbalanced force acts on an object?

Back

The object accelerates.

Front

When a pair of balanced forces acts on an object, what is the net force that results?

Back

equal to zero.

Front

What kind of friction occurs as a fish swims through water?

Back

fluid

Front

As you push a cereal box across a tabletop, the sliding friction acting on the cereal box.

Back

acts in the direction opposite of motion.

Front

The forces acting on a falling leaf are

Back

gravity and air resistance.

Front

How does an open parachute increase air resistance for a falling sky diver?

Back

increasing surface area.

Front

What causes projectile motion?

Back

the downward force of gravity and an initial forward velocity.

Front

The property of matter that resists changes in motion is called

Back

inertia.