Podcast
Questions and Answers
What is the primary reason collisions in space do not produce sound?
What is the primary reason collisions in space do not produce sound?
- There is no air or matter in space to transmit vibrations. (correct)
- Sound energy in space gets absorbed by cosmic radiation.
- Collisions in space happen too slowly to generate sound.
- Objects in space are too far apart to collide effectively.
How does the shape of a car's front end contribute to passenger safety during a collision?
How does the shape of a car's front end contribute to passenger safety during a collision?
- It is designed to be rigid to withstand the impact force.
- It is aerodynamically shaped to deflect impact forces away from the car.
- It changes shape easily to absorb and dissipate the collision energy. (correct)
- It is made of lightweight materials to minimize the collision impact.
In a bowling game, how is energy transformed during the collision between the ball and the pins?
In a bowling game, how is energy transformed during the collision between the ball and the pins?
- Motion energy of the ball is reflected back, increasing the ball's speed.
- Motion energy of the ball is completely converted into heat.
- Motion energy of the ball is converted into potential energy of the pins.
- Motion energy of the ball is transferred to the pins, giving them motion energy, and some becomes sound. (correct)
If a cotton ball and a rock of the same size are thrown at the same speed, which would have more energy of motion, and why?
If a cotton ball and a rock of the same size are thrown at the same speed, which would have more energy of motion, and why?
What observable effect on the moon provides evidence of energy transfer during collisions?
What observable effect on the moon provides evidence of energy transfer during collisions?
In a water balloon toss, what causes a water balloon to break upon collision?
In a water balloon toss, what causes a water balloon to break upon collision?
How does increasing the speed of a moving object affect the energy transferred during a collision?
How does increasing the speed of a moving object affect the energy transferred during a collision?
During a collision, what change occurs as energy is transformed from motion to sound?
During a collision, what change occurs as energy is transformed from motion to sound?
Why do engineers design cars to change shape more easily in the front than in the passenger area during a collision?
Why do engineers design cars to change shape more easily in the front than in the passenger area during a collision?
What happens to the bowling ball's motion energy after it collides with the pins?
What happens to the bowling ball's motion energy after it collides with the pins?
Flashcards
Collision
Collision
An instance of colliding; when two objects make contact.
Collide
Collide
To come together with impact.
Speed
Speed
Speed is how fast an object moves.
Sound
Sound
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Moon Craters
Moon Craters
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Study Notes
- Collisions happen when two objects make contact
- In every collision, changes occur
- Objects can change speed or direction after a collision
- Objects can change shape after a collision
- Collisions may result in a sound or sparks
- You can feel an object colliding with you
- To collide means to come together with impact
- A collision is an instance of colliding
- The word part "col-" in collide and collision means together or with
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