FCAT Review

The SI unit of force is the

• joule.

• kilogram.

• meter.

• newton.

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

Tags

NGSS.HS-PS2-1

When an unbalanced force acts on an object,

• the object’s motion does not change

• the object accelerates.

• the weight of the object decreases

• the inertia of the object increases

Tags

NGSS.MS-PS2-2

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

• greater in size than both forces combined.

• greater in size than one of the forces.

• equal in size to one of the forces

• equal to zero.

Tags

NGSS.HS-PS2-1

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

• fluid

• rolling

• sliding

• static

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

• acts in the direction of motion

• equals the weight of the box.

• is usually greater than static friction

• acts in the direction opposite of motion.

Tags

NGSS.MS-PS2-2

The forces acting on a falling leaf are

• air resistance and fluid friction

• gravity and air resistance.

• gravity and static friction.

• weight and rolling friction

Tags

NGSS.MS-PS2-4

An open parachute increases air resistance of a falling sky diver by

• decreasing the weight of the diver

• increasing surface area.

• increasing the terminal velocity.

• reducing fluid friction.

Projectile motion is caused by

• the downward force of gravity.

• an initial forward velocity.

• a final vertical velocity.

• the downward force of gravity and an initial forward velocity.

Tags

NGSS.MS-PS2-4

The property of matter that resists changes in motion is called

• friction.

• gravity.

• inertia.

• weight