Exploring Forces and Motion

What is the definition of force?

• Force is an interaction that causes an object to change its velocity.

• Force is the mass of an object multiplied by its temperature.

• Force is a type of energy that cannot be measured.

• Force is the distance an object travels over time.

What unit is used to measure force?

• Watt

• Joule

• Newton

• Pascal

What is Newton's First Law of Motion?

• An object will remain in motion only if it is in a vacuum.

• An object will remain at rest or in uniform motion unless acted upon by an external force.

• An object will change direction only when a force is applied.

• An object will accelerate if no force is applied.

How does friction affect motion?

• Friction opposes motion, slowing down or stopping moving objects.

• Friction increases the speed of moving objects.

• Friction only affects stationary objects.

• Friction has no effect on motion whatsoever.

What is the difference between speed and velocity?

• Speed is scalar; velocity is vector (includes direction).

• Speed can be negative, while velocity cannot.

• Velocity measures distance only, not direction.

• Speed is always greater than velocity.

What is acceleration?

• Acceleration is the rate of change of velocity.

• Acceleration is the force applied to an object.

• Acceleration is the distance traveled over time.

• Acceleration is the speed of an object.

What is the formula for calculating force?

• F = m + a

• F = m * a

• F = m - a

• F = m / a

What is inertia?

• Inertia is the energy stored in an object at rest.

• Inertia is the speed of an object in motion.

• Inertia is the resistance of an object to changes in its motion.

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

How do balanced and unbalanced forces affect motion?

• Balanced forces cause objects to accelerate, while unbalanced forces keep them at rest.

• Balanced forces maintain motion, while unbalanced forces change motion.

• Balanced forces create friction, while unbalanced forces reduce it.

• Balanced forces always stop motion, while unbalanced forces have no effect.

What is the role of gravity in motion?

• Gravity only affects large objects like planets.

• Gravity has no effect on the speed of falling objects.

• Gravity is a type of friction that slows down motion.

• Gravity acts as a force that influences the motion of objects by attracting them towards each other.