Introduction to forces

What is a force?

• Push, pull or twist that can change an object's motion

• Push, pull or twist that never changes an object's motion

• Push and pull that can change an object's motion

• The acceleration and deceleration of an object

What kind of force is the boy exerting?

• Pull

• Push

• Tug

• Twist

What force is being is the man using to move the object?

• Push

• Twist

• Pull

• Gravity

What force is being exerted here?

• Acceleration

• Push

• Pull

• String

What force is being exerted here?

• Pull

• Circular

• Turn

• Twist

Forces can affect motion and cause objects to.....

• Move slower

• Stop moving

• Change direction

• All of the above

Acceleration is....

• When something moves faster (increases in speed)

• When something slows down (decreases in speed)

• When something changes shape

• When something changes direction at a constant speed

Acceleration is....

• When something moves faster (increases in speed)

• When something slows down (decreases in speed)

• When something changes shape

• When something changes direction at a constant speed

Deceleration is....

• When something moves faster (increases in speed)

• When something slows down (decreases in speed)

• When something changes shape

• When something changes direction at a constant speed

Which of the following can be used to measure forces?

• Jug

• Spring balance

• Beaker

• Ruler