Calculating Motion W30

Front

What is acceleration?

Back

Acceleration is the rate at which an object changes its velocity. It occurs when an object speeds up, slows down, or changes direction.

Front

What does it mean for an object to have a constant velocity?

Back

An object has a constant velocity when it moves at the same speed and in the same direction over a period of time.

Front

How is velocity defined?

Back

Velocity is defined as speed in a given direction. It is a vector quantity.

Front

What is the formula for calculating net force?

Back

Net force can be calculated using the formula: Net Force = mass x acceleration (F = m * a).

Front

If a crate has a mass of 50 kg and is pushed with an acceleration of 20 m/s², what is the net force?

Back

The net force acting on the crate is 1000 N.

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

How do you calculate speed?

Back

Speed can be calculated using the formula: Speed = distance / time.

Front

If a car travels 20 kilometers in 2 hours, what is its speed?

Back

The speed of the car is 10 km/hr.

Front

What is a vector quantity?

Back

A vector quantity is a physical quantity that has both magnitude and direction, such as velocity and acceleration.

Front

What is a scalar quantity?

Back

A scalar quantity is a physical quantity that has only magnitude and no direction, such as speed and distance.