Forces and Motion

What is the effect of balanced forces on an object?

• Balanced forces cause an object to accelerate.

• Balanced forces do not change the motion of an object.

• Balanced forces always result in a change of direction.

• Balanced forces increase the speed of an object.

What is the relationship between mass and acceleration in Newton's Second Law?

• Mass and acceleration are directly proportional when force is constant.

• Mass and acceleration are inversely proportional when force is constant.

• Mass and acceleration are unrelated in Newton's Second Law.

• Mass and acceleration are equal when force is constant.

What is the effect of unbalanced forces on an object?

• Unbalanced forces cause an object to remain at rest.

• Unbalanced forces cause an object to accelerate in the direction of the net force.

• Unbalanced forces cause an object to move at a constant speed.

• Unbalanced forces have no effect on an object's motion.

What is Newton's Second Law of Motion?

• F = ma (Force equals mass times acceleration)

• F = mv (Force equals mass times velocity)

• F = m/a (Force equals mass divided by acceleration)

• F = m + a (Force equals mass plus acceleration)

What is Newton's Third Law of Motion?

• For every action force, there is an equal and opposite reaction force.

• An object in motion stays in motion unless acted upon by an external force.

• The force of gravity is proportional to the mass of the objects involved.

• The acceleration of an object is directly proportional to the net force acting on it.

What is the difference between speed and velocity?

• Speed is a vector quantity, while velocity is a scalar quantity.

• Speed is scalar (magnitude only), while velocity is vector (magnitude and direction).

• Speed and velocity are the same; they both refer to how fast an object is moving.

• Speed is measured in meters per second, while velocity is measured in kilometers per hour.

What is the definition of velocity?

• Velocity is the speed of an object in a specific direction.

• Velocity is the rate of change of an object's position over time.

• Velocity is the total distance traveled by an object.

• Velocity is the measure of how fast an object can stop.

What is gravitational force?

• A force that repels two masses from each other.

• The attraction between two masses.

• A force that acts only on Earth.

• A type of electromagnetic force.

What formula is used to find speed?

• Speed = Distance / Time

• Speed = Time / Distance

• Speed = Distance x Time

• Speed = Distance + Time

What is inertia?

• Inertia is the tendency of an object to resist changes in its state of motion.

• Inertia is the force that causes an object to accelerate.

• Inertia is the measure of an object's mass.

• Inertia is the energy possessed by a moving object.