Acceleration Practice

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object with respect to time.

Front

What is the formula for calculating acceleration?

Back

Acceleration (a) = (Final Velocity (v_f) - Initial Velocity (v_i)) / Time (t)

Front

What is the SI unit for acceleration?

Back

The SI unit for acceleration is meters per second squared (m/s²).

Front

If a car's velocity decreases, what type of acceleration is it experiencing?

Back

The car is experiencing negative acceleration, also known as deceleration.

Front

What does a constant acceleration mean?

Back

Constant acceleration means that the rate of change of velocity is the same over time.

Front

How do you convert km/hr to m/s?

Back

To convert km/hr to m/s, divide the speed by 3.6.

Front

If a truck accelerates from 0 to 20 km/hr in 8 seconds, what is its acceleration in m/s²?

Back

Acceleration = (20 km/hr * (1000 m/km) / (3600 s/hr)) / 8 s = 0.694 m/s².

Front

What does it mean if an object is moving at a constant speed?

Back

It means the object is covering equal distances in equal intervals of time without changing its velocity.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

What is the effect of acceleration on an object's motion?

Back

Acceleration causes an object to change its velocity, which can result in speeding up, slowing down, or changing direction.