CHILD DEVELOPMENT PEDAGOGY

GROWTH DEVELOPMENT CHILD

SUMMATIVE ASSESSMENT

Please wait while the activity loads.
If this activity does not load, try refreshing your browser. Also, this page requires javascript. Please visit using a browser with javascript enabled.

If loading fails, click here to try again

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

A bug flies into the windshield of a car going the opposite way. Which of the following is true?

A	the force of impact is the same for both
B	the impulse is the same for both
C	the acceleration of the bug is larger than the truck
D	A, B, and C are all true

Explanation:

Detailed explanation-1: -What about a bug hitting a car windshield? The force of the bug on the windshield is equal to the force of the windshield on the bug, only in the opposite direction.

Detailed explanation-2: -Newton’s laws of motion require an equal and opposite force. The bug hits the windshield with the same magnitude of force as the windshield hits the bug, just in opposing directions.

Detailed explanation-3: -Explanation of Solution Yes, the forces of impact on the bug and on the car are the same size because according to Newton’s third law of motion, objects exert equal and opposite forces on each other. Thus, the impact forces on the bug and on the car are the same size. Conclusion: Hence, the given statement is true.

Detailed explanation-4: -(b) a=Fm a = F m . The mass of the bus is more as compared to the mass of the fly. Thus, the fly has greater acceleration.

There is 1 question to complete.