What is the relationship between force and acceleration according to Newton's second law of motion?

• Force and acceleration are directly proportional

• Force and acceleration are inversely proportional

• Force and acceleration are equal

• Force and acceleration are not related

What is the tendency of objects to resist any change in motion called?

• Velocity

• Inertia

• Friction

• Acceleration

According to Newton's first law of motion, what happens to an object at rest when no unbalanced force acts on it?

• It accelerates

• It remains at rest

• It changes direction

• It moves at a constant velocity

What is the unit of speed when measuring motion?

• Meters per second per second

• Miles per hour

• Kilograms per meter

• Newtons

What is the relationship between the mass of an object and its inertia?

• More mass has less inertia

• Less mass has less inertia

• Less mass has more inertia

• More mass has more inertia

What is the force that balances the upward force of 3 N acting on an object?

• 5 N in the upward direction

• 2 N in the upward direction

• 4 N in the downward direction

• 3 N in the downward direction

How does the airbag in a car affect the motion of the driver?

• It has no effect on the driver's motion

• It increases the driver's speed

• It decreases the driver's speed

• It protects the driver from a sideways collision

What is the relationship between the acceleration and force when the mass of an object is constant?

• They are not related

• They are inversely proportional

• They are equal

• They are directly proportional

What is the force that causes a baseball player to stop sliding into a base?

• Friction

• Acceleration

• Gravity

• Inertia

Why might it be difficult to use a normal screwdriver to tighten a screw in space?

• The screw is too tight

• The screwdriver is too heavy

• There is no gravity in space

• The screwdriver is too light