unit 2 quiz 3

when you turn on a radio the electrical energy changes into………………… energy

• light energy

• sound energy

• heat energy

……………………. Energy depends on the speed of an object.

• potential

• kinetic

• electric

the balanced forces cause the object move?

• true

• false

When a roller coaster stops its energy of motion……………

• doesn't change

• increases

• decreases

• becomes zero

After a car collision, the airbags deflate as fast as they inflate?

• true

• false

the stopped object can't move until a force acts on it

• true

• false

safety equipment used to provide soft cushion when it is inflated automatically with gas during a collision of cars

• air bags

• seatbelts

• parachute

when an object is in motion this means that its ......................changes.

• color

• size

• shape

• position

the energy that is stored in food and battery?

• chemical

• light

• sound

speed is a measurement of how ..................................object is moving

• fast

• tall

• long

• heavy