Physics Midterm Review

Front

What is the effect of air resistance on falling objects?

Back

Air resistance affects the speed at which objects fall. Lighter objects, like a flat sheet of paper, experience more air resistance relative to their weight, causing them to fall slower than heavier objects, like a physics book.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Front

What is displacement in physics?

Back

Displacement is a vector quantity that refers to the change in position of an object. It is the shortest distance from the initial to the final position, along with the direction.

Front

Does mass change when moving from one planet to another?

Back

No, mass remains constant regardless of location. For example, Ellen's mass is 78 kg on Earth and remains 78 kg on Mars.

Front

How does the mass of an object affect its falling time?

Back

The mass of an object does not affect the time it takes to fall to the ground in a vacuum. All objects fall at the same rate regardless of mass, but air resistance can affect lighter objects.

Tags

NGSS.MS-PS2-4

Front

What is the horizontal velocity of a projectile?

Back

The horizontal velocity (Vx) of a projectile remains constant throughout its flight, assuming no air resistance.

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 gravitational acceleration on Earth?

Back

Gravitational acceleration on Earth is approximately 9.8 m/s², which is the rate at which objects accelerate towards the Earth due to gravity.

Front

What is the formula for calculating displacement?

Back

Displacement can be calculated using the formula: Displacement = Final Position - Initial Position.

Front

What is the principle of conservation of energy?

Back

The principle of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.

Tags

NGSS.MS-PS3-5

Front

What is the relationship between force, mass, and acceleration?

Back

According to Newton's second law, the relationship is given by the formula: Force = Mass × Acceleration (F = ma).

Tags

NGSS.MS-PS2-2