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Questions and Answers

What did Galileo Galilei discover about the movement of objects down inclined planes?

The velocity of the ball changed because the speed of the ball was changing (correct)

The objects moved at a constant velocity regardless of the incline angle

The acceleration of the objects remained constant throughout the motion

The mass of the object affected its velocity on the incline

What is the concept of inertia?

The ability of an object to maintain a constant speed

The force exerted by an object in motion

An object's tendency to resist change in its state of motion (correct)

The measure of an object's velocity

What did Galileo's experiments with inclined planes demonstrate?

The relationship between mass and velocity

The rate of change of velocity, known as acceleration (correct)

The impact of friction on velocity

The constant speed of objects on inclines

How did Galileo support his scientific conclusions?

By diligent use of experiments Signup and view all the answers

What describes acceleration?

The change in velocity over time Signup and view all the answers

What was one of the reasons for Galileo's success as a scientist?

His diligent use of experiments Signup and view all the answers

What is the difference between speed and velocity?

Velocity includes direction, while speed does not Signup and view all the answers

What is the formula for acceleration?

a = ΔV/Δt Signup and view all the answers

If a car steadily increases its velocity from 20 km/h to 60 km/h in 3 seconds, what is its acceleration?

13.3 km/h*s Signup and view all the answers

What is the acceleration of an object in free fall when air resistance is negligible?

9.8 m/s2 Signup and view all the answers

When a car decelerates, it means that the car's:

Velocity decreases Signup and view all the answers

What is the change in velocity for an object that goes from 10 m/s to 30 m/s in 5 seconds?

20 m/s Signup and view all the answers

If an object's velocity changes by 5 m/s in 2 seconds, what is its acceleration?

2.5 m/s2 Signup and view all the answers

What is the acceleration of an object that steadily increases its velocity from 12 km/h to 36 km/h in 4 seconds?

9 km/h*s Signup and view all the answers

If an object's velocity changes by 15 m/s in 5 seconds, what is its acceleration?

3 m/s2 Signup and view all the answers