Question

Question
1
Question
2
Question
3
A)
Which phrase describes the energy of collision?
(1 point)
force of molecules striking one another
kinetic energy transferred when billiard balls hit each other
heat that causes ice to melt when hot water is poured on it
energy passed from one object to another
A)
Which phrase describes
energy transfer
?
(1 point)
the force needed to cause an object to move
the force of molecules striking each other
the process of energy passing from one body to another
the process of heat passing from hot to cold objects
A)
When hot water is poured over ice, which type of energy is being transferred?
(1 point)
kinetic
mechanical
electromagnetic
thermal
Question
4
Question
5
A)
Which of the following collides with Earth, causing its entire surface to warm?
(1 point)
gases
light
asteroids
electricity
A)
Bumper cars at an amusement park are designed to safely collide with one another. Why does abumper car stop moving when it strikes another car?
(1 point)
Its energy is transferred to its surroundings.
The other car pushes back on it, so it cannot move forward.
Its energy is transferred to the other car.
The other cars are tightly packed, so forward motion is not possible.

Answer 1

1) Which phrase describes the energy of collision?
Answer: kinetic energy transferred when billiard balls hit each other.
Reason: A collision involves objects' kinetic energy being exchanged during impact.

2) Which phrase describes energy transfer?
Answer: the process of energy passing from one body to another.
Reason: Energy transfer is the movement of energy between systems or objects.

3) When hot water is poured over ice, which type of energy is being transferred?
Answer: thermal.
Reason: Heat (thermal energy) flows from the hot water to the colder ice.

4) Which of the following collides with Earth, causing its entire surface to warm?
Answer: light.
Reason: Sunlight (electromagnetic radiation) strikes Earth and warms its surface.

5) Why does a bumper car stop moving when it strikes another car?
Answer: Its energy is transferred to the other car.
Reason: The moving car's kinetic energy is transferred during the collision (and partly to surroundings), causing it to slow or stop.