Question

question 7
acceleration due to gravity is also called
instantaneous acceleration.
displacement.
negative velocity.
free - fall acceleration.

question 8
when there is no air resistance, objects of different masses dropped from rest
fall with equal accelerations and with different displacements.
fall with equal accelerations and with equal displacements.
fall with different accelerations and with different displacements.
fall with different accelerations and with equal displacements.

Explanation:

• For Question 7: Acceleration due to gravity is the acceleration of an object in free - fall under the influence of Earth's gravity, so it is also called free - fall acceleration. Instantaneous acceleration is the acceleration at a specific instant, displacement is the change in position, and negative velocity is related to the direction of motion, not the same as acceleration due to gravity.
• For Question 8: In the absence of air resistance, all objects near the Earth's surface experience the same acceleration due to gravity (approximately 9.8 m/s²). If they are dropped from the same height (same initial conditions for displacement), they will have equal displacements as they fall for the same time under the same acceleration.

Answer:

Question 7: free - fall acceleration
Question 8: fall with equal accelerations and with equal displacements