Forces & Newton's Laws of Motion

Forces are measured in:

• Inertia

• Grams

• Tons

• Newtons

The sum (total) of all forces acting on an object:

• Unbalanced Force

• Balanced Force

• Newtons

• Net Force

What is the net force?

• 20 N 
• 0 N 
• 400 N 
• 40 N 

A 5 kg block is pulled across a table by a net force of 32 N. Calculate the acceleration of the object. To solve this problem you must do - 

• 32 ÷ 5
• 5 ÷ 32
• 32 x 5

A skier needs to apply a force of 132 N to accelerate at a rate of 2 m/s². What is the mass of the skier? To solve this problem you must do - 

• 132 ÷ 2
• 2 ÷ 132
• 132 x 2

The greater the mass of an object, the more force it will take to accelerate the object.

• Newton's 1st Law of Motion

• Newton's 2nd Law of Motion

• Newton's 3rd Law of Motion

Who wins the tug of war with what net force?

• The person on the left with 20 N
• The person on the left with 80 N
• The people on the right with 20 N
• The people on the right with 100 N

The mass of a car is 1000 kg.  How much force would be required to accelerate the car at a rate of 3 m/s²? 

• 1000 ÷ 3
• 3 ÷ 1000
• 1000 x 3

The picture is an example of Newton's...

• 1st Law

• 2nd Law

• 3rd Law

An unequal push/pull on an object that causes a change in motion:

• Unbalanced Force

• Push

• Balanced Force

• Inertia