Which statement(s) below is/are correct?
Student 1 When the velocity of an object changes, the acceleration of the object also changes.
Student 2 Velocity can change without acceleration changing.
Student 3 If you were on a merry go round, and you were going a constant speed, you would still be accelerating.
Student 4 Brakes on a car cause a change in the the car's velocity by slowing it down. This is also an example of acceleration.
Students 1,3, and 4 are correct. Student 2 is not correct because if velocity is changing, speed could be changing, or direction could be changing, or both. Since acceleration is speeding up, slowing down, or changing direction, if any one of those conditions are changing, the acceleration and velocity are changing.
The correct statements are:
1. Student 1 - When the velocity of an object changes, the acceleration of the object also changes.
3. Student 3 - If you were on a merry go round, and you were going a constant speed, you would still be accelerating.
4. Student 4 - Brakes on a car cause a change in the car's velocity by slowing it down. This is also an example of acceleration.
the answer ptions are
A bike moving backwards at 3 meters/second
A ball sitting motionless on the floor
A car slows down to turn a corner
An airplane moving at 500 km/hr
Based on the options provided, the correct statement(s) would be:
3. A car slows down to turn a corner - This is an example of a change in velocity (slowing down) and therefore, acceleration.
4. An airplane moving at 500 km/hr - As long as the airplane is maintaining a constant speed and direction, there is no change in velocity and therefore no acceleration.
pick 1
In that case, the correct statement would be:
3. A car slows down to turn a corner - This is an example of a change in velocity (slowing down) and therefore, acceleration.