Midterm Self Assessment

Front

What is velocity?

Back

Velocity is a vector quantity that refers to the rate at which an object changes its position. It has both magnitude and direction.

Front

What is the difference between speed and velocity?

Back

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

Front

What is normal force?

Back

Normal force is the force exerted by a surface to support the weight of an object resting on it, acting perpendicular to the surface.

Front

How do you calculate the normal force on an inclined plane?

Back

The normal force (N) can be calculated using the formula: N = mg cos(θ), where m is mass, g is acceleration due to gravity, and θ is the angle of the incline.

Front

What is projectile motion?

Back

Projectile motion is the motion of an object that is thrown into the air and is subject to the force of gravity, following a curved path.

Front

What does v_0,x represent in projectile motion?

Back

v_0,x represents the initial horizontal velocity of the projectile.

Front

What does v_f,x represent in projectile motion?

Back

v_f,x represents the final horizontal velocity of the projectile just before impact.

Front

At what point in projectile motion is the vertical velocity (v_y) equal to zero?

Back

The vertical velocity (v_y) is equal to zero at the peak of the projectile's trajectory.

Front

What is the formula for calculating the weight of an object?

Back

Weight (W) can be calculated using the formula: W = mg, where m is mass and g is the acceleration due to gravity.

Front

What is the significance of the angle in inclined plane problems?

Back

The angle of the incline affects the distribution of forces acting on the object, including the normal force and gravitational force components.