P11 Forces (3) Newton's second law

Which would accelerate quickest, if the force is the same?

• A truck

• A car

• A person

• A water bottle

What happens to an objects motion if the net force is zero?

• It will move at a constant velocity

• It slow and remain at rest

• It will accelerate

• It will turn

The magnitude of the acceleration is inversely proportional to

• The net force

• The mass

• The friction

• Gravity

How much force would it take to accelerate a 1 kg mass at 5 m/s²

• 5 N

• 1/5 N

• 2.5 N

• 1 N

A 30 kg mass accelerates at 9.8 m/s². What is the net force?

• 294 N

• 3.06 N

• 39.8 N

• 20.2 N

Which pair of variables has a linear relationship?

• force and acceleration

• acceleration and mass

Which situation would have the highest force of tension supporting a mass?

• System at rest

• System accelerating up

• System accelerating down

What symbol denotes proportionality?

• ∆

• Σ

• ∝

• g

What symbol denotes a sum?

• ∆

• Σ

• ∝

• g

Which object would accelerate most slowly?

• A person falling with air drag

• A person falling without air drag

• A person who has a parachute falling without air drag