Force and Motion Quiz

What is the force that opposes the motion of an object?

• Inertia

• Friction

• Gravity

• Acceleration

Which force keeps an object in motion?

• Gravity

• Inertia

• Friction

• Acceleration

What is Newton's first law of motion?

• An object at rest will start moving on its own

• An object in motion will slow down and eventually stop

• An object in motion will change direction without any external force

• An object at rest will stay at rest, and an object in motion will stay in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

According to Newton's second law of motion, what happens to the acceleration of an object when the force acting on it increases?

• Acceleration increases

• Acceleration remains constant

• Acceleration becomes negative

• Acceleration decreases

How does friction affect the motion of an object?

• Friction creates resistance to the motion of an object.

• Friction causes the object to float in the air

• Friction has no effect on the motion of an object

• Friction increases the speed of an object

What is the relationship between force and motion?

• Force is the cause of motion

• Motion and force are unrelated

• Force has no effect on motion

• Motion causes force

How does the mass of an object affect its speed when the force applied to it remains constant?

• The mass of an object has no effect on its speed

• The mass of an object affects its speed when the force applied to it remains constant.

• The mass of an object increases its speed

• The mass of an object decreases its speed

Explain how the mass of an object affects its speed when the force applied to it increases.

• The speed of the object remains constant

• The speed of the object decreases

• The speed of the object becomes unpredictable

• The speed of the object increases

Describe the relationship between mass and speed using Newton's second law of motion.

• The speed of an object is directly proportional to its mass and inversely proportional to the acceleration.

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

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

• The speed of an object is directly proportional to its mass and inversely proportional to the net force acting on it.