Y13 Linear Motion

What is the equation for impulse?

• force ÷time

• mass x velocity

• force x time

• velocity x time

What unit is impulse measured in?

When drawing a force-time graph, which component of force is drawn first?

On the graph, what goes along the Y axis? (you do not need to state the unit)

Which is true if an athlete is decelerating?

• Friction = Air resistance

• Friction < Air resistance

• Friction > Air resistance

During the start of a 100m race, the net impulse is what?

• positive

• negative

• equal

• impulse

Which of the following is NOT an example of an external force?

• reaction force

• weight

• muscle contraction

• air resistance

What stage of a 100m race is the graph showing?

• start

• middle

• end

On the graph, what goes along the X axis? (you do not need to state the unit)

What stage of a 100m race is the graph showing?