Homework 22: Newton's laws of Motion

A 20 kg bike accelerates at 10 m/s². What was the net force?

• 25 Newtons

• 20 Newtons

• 200 Newtons

• 10 Newtons

Which one of Newton’s Laws of Motion best explains why the dishes do not move when the tablecloth is removed?

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

Which arrow shows the direction of the friction force?

• A

• B

• C

• D

45 m/s² represents the ___________________________.

• mass

• force

• acceleration

• weight

Which type of force(s) will cause a change in an object's motion?

• gravity

• zero net force

• balanced forces

• unbalanced forces

Newton's third law states that any action will have a(n) _______ and ______ reaction.

• Equal and similar

• Equal and opposite

• Equal and different

• Greater and opposite

What law does this equation apply to?

• Newton's first law of motion

• Newton's second law of motion

• Newton's third law of motion

• None of these

A bike accelerates at 10 m/s² when a force of 50N is applied. What is the mass of the bike and its rider?

• 25 kg

• 200 kg

• 20 kg

• 5 kg

What is the standard unit that force is measured in?

• Newtons

• pounds

• grams

• meters

What law of motion does this picture represent?

• Newtons 1st law
• Newtons 4th law 
• Newtons 3rd law 
• Newtons 2nd law