Physics Semester 1 Final Exam Questions

If you walk away from a motion detector the graph slopes

Up

If you walk toward a motion detector, the distance time graph slopes

down

If an objects speed is changing, then the distance time graph is

curved

If you stand still, the distance time graph is

flat

If you walk toward the motion detector, the velocity is

Positive

If you walk away from the motion detector, the velocity is

negative

if you stand still, the velocity is

zero

If you walk more quickly, the slope of the graph is

steeper

the word ______ means size or amount

magnitude

______ is a unit of force

Newton

The combination of all forces acting on an object is calld the

Net Force

A book sits on a table. The table pushes on it. THe name of this force is the

Normal Force

_____ is when the net force on an object is zero

Equalibrium

If I push a box to the right, the direction of the friction force on it is to the

left

Newton’s third law says that when two objects collide, the forces on them are always _____

equal and oppisite

As a skydiver’s speed increases, the force of ________ on her increases

air resistance

Newtons third law says that for every ____, there is an equal and oppisite _____

action, reaction

Force, mass and ____ are related

acceleration

If you throw something streight up, the acceleration when the ball stops at the top is

10m/s²

how many newtons is 1kg

9.81 N