Acceleration Basics

What is the formula to calculate acceleration?

• acceleration = (final velocity + initial velocity) / time

• acceleration = (final velocity - initial velocity) / time

• acceleration = (final velocity - initial velocity) * time

• acceleration = (final velocity * initial velocity) / time

How is acceleration represented in a straight line?

• Magnitude quantity

• Angular quantity

• Vector quantity

• Scalar quantity

Can you provide an example of a scenario with negative acceleration?

• A cyclist pedaling uphill

• A plane taking off from the runway

• A rocket launching into space

• A car slowing down to stop at a red light.

What are the units of acceleration in the metric system?

• m/s^2

• kg/m

• cm/s

• km/h

• m

Convert 20 m/s^2 to km/h^2.

• 2000000 km/h^2

• 500000 km/h^2

• 200000 km/h^2

• 5000000 km/h^2

If an object's velocity changes from 10 m/s to 30 m/s in 5 seconds, what is its acceleration?

• 4 m/s^2

• 6 m/s^2

• 10 m/s^2

• 8 m/s^2

Explain the concept of acceleration due to gravity.

• Acceleration due to gravity is caused by magnetic forces.

• Acceleration due to gravity is the acceleration an object experiences due to the gravitational force exerted by the Earth.

• Acceleration due to gravity is the same everywhere on Earth.

• Acceleration due to gravity is only applicable in outer space.

What is the difference between acceleration and deceleration?

• Acceleration is an increase in speed, while deceleration is a decrease in speed.

• Acceleration is a decrease in speed, while deceleration is an increase in speed.

• Acceleration is a change in direction, while deceleration is a change in speed.

• Acceleration is a constant speed, while deceleration is a variable speed.

How does acceleration affect an object's motion?

• Acceleration has no effect on an object's motion.

• Acceleration makes an object change color.

• Acceleration changes an object's velocity over time.

• Acceleration causes an object to shrink in size.

Calculate the acceleration of a car that goes from 0 to 100 km/h in 10 seconds.

• 2.78 m/s^2

• 1.23 m/s^2

• 3.45 m/s^2

• 5.67 m/s^2