Front

What is average acceleration?

Back

Average acceleration is the change in velocity divided by the time over which the change occurs. It is measured in meters per second squared (m/s²).

Front

How do you calculate distance traveled at constant speed?

Back

Distance = Speed × Time. For example, if a bus travels at 100 m/s for 7 minutes, the distance is 100 m/s × 420 s = 42000 m.

Front

What does a decreasing speed graph look like?

Back

A decreasing speed graph slopes downwards, indicating that the object is slowing down over time.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object. It can involve speeding up, slowing down, or changing direction.

Front

How do you calculate time taken for a journey?

Back

Time = Distance ÷ Speed. For example, to travel 600 km at 100 km/h, it takes 600 km ÷ 100 km/h = 6 hours.

Front

What is the unit of speed?

Back

The unit of speed is meters per second (m/s) or kilometers per hour (km/h).

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 does it mean if an object has constant speed?

Back

Constant speed means the object covers equal distances in equal intervals of time, regardless of how small the time intervals are.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a force.

Front

What is momentum?

Back

Momentum is the product of an object's mass and its velocity. It is a vector quantity and is conserved in closed systems.