Kinematics Review

Front

What happens to the time it takes for an object to hit the ground when it is projected horizontally from a height?

Back

The time it takes to hit the ground is the same as if it was just dropped.

Front

Define Displacement in physics.

Back

Displacement is the change in position and is a vector quantity.

Front

If a skateboarder rolls off a bridge at 7.0 m/s, how much time do they spend in the air?

Back

0.79 seconds.

Front

Which lemming will hit the ground farther from the base of the cliff if Lemming A runs off at 2 m/s and Lemming B at 1 m/s?

Back

Lemming A will hit the ground farther.

Front

What is acceleration defined as in physics?

Back

Acceleration is defined as the change in velocity.

Front

What is the difference between distance and displacement?

Back

Distance is a scalar quantity representing the total path length, while displacement is a vector quantity representing the shortest path from the initial to the final position.

Front

What is the formula for calculating average speed?

Back

Average speed = Total distance / Total time.

Front

What is the significance of a negative acceleration?

Back

Negative acceleration indicates that an object is slowing down.

Front

How does gravity affect the motion of a falling object?

Back

Gravity causes the object to accelerate downwards at approximately 9.81 m/s².

Front

What is the relationship between velocity and speed?

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.