Physics Motion Quiz

What is the formula to calculate the horizontal distance traveled by a projectile?

• horizontal distance = initial velocity * time * cosine(angle)

• horizontal distance = initial velocity * time * secant(angle)

• horizontal distance = initial velocity * time * sine(angle)

• horizontal distance = initial velocity * time * tangent(angle)

How does rotational inertia affect the rotation of an object?

• Rotational inertia only affects linear motion, not rotational motion

• Rotational inertia causes objects to rotate faster without any external force

• Rotational inertia affects the rotation of an object by determining how much torque is needed to accelerate or decelerate its rotation.

• Rotational inertia has no impact on the rotation of an object

What is Kepler's first law of planetary motion?

• Planets move in circular orbits around the Sun

• Planets move in elliptical orbits with the Sun at one focus of the ellipse.

• Planets move in straight lines away from the Sun

• Planets move in random patterns around the Sun

Explain the concept of centripetal force in rotational dynamics.

• Centripetal force is not necessary for objects in circular motion.

• Centripetal force acts tangentially to the circle's edge.

• Centripetal force is required to maintain an object's circular motion by continuously changing its direction towards the center of the circle.

• Centripetal force pushes objects away from the center of rotation.

What is the equation for the vertical displacement of a projectile?

• y(t) = v0*cos(θ)*t - (1/2)*g*t^2

• y(t) = v0*sin(θ)*t - (1/2)*g*t^2

• y(t) = v0*sin(θ)*t + (1/2)*g*t^2

• y(t) = v0*sin(θ)*t - g*t^2

How is torque related to rotational motion?

• Torque is unrelated to motion

• Torque is directly related to rotational motion as it causes objects to rotate around an axis.

• Torque has no effect on rotational motion

• Torque causes linear motion instead of rotational motion

What does Kepler's first law state about the orbit of a planet?

• Planets move in hyperbolic orbits with the Sun at the center

• Planets move in circular orbits around the Sun

• Planets move in elliptical orbits with the Sun at one of the two foci.

• Planets move in straight lines away from the Sun

Describe the relationship between planetary motion and Kepler's laws.

• Planetary motion is solely determined by gravitational forces

• Kepler's laws describe the relationship between planetary motion and the orbits of planets around the Sun.

• Kepler's laws have no impact on planetary motion

• Kepler's laws are based on astrology, not astronomy

In which direction does centripetal force act in a rotating object?

• Toward the outer edge of the object

• In the opposite direction of the rotation

• Away from the center of rotation

• Towards the center of rotation

What factors affect the range of a projectile?

• Projectile weight, launch sound, humidity

• Projectile shape, launch location, time of day

• Initial velocity, launch angle, air resistance, and gravitational force

• Wind speed, temperature, projectile color