# Chapter 12 Review 2 Question Preview (ID: 595)

### Newton's Laws. Answers? Play games to get them!

An orange might roll off your cafeteria tray when you stop suddenly because of
a) the balanced forces acting on the orange
b) the centripetal force acting on the orange
c) the friction forces acting on the orange
d) the orange's inertia

According to Newton's 2nd Law, the acceleration of an object equals the net force acting on the object divided by the object's
a) mass
b) momentum
c) velocity
d) weight

If a force of 18N is applied to an object with a mass of 1 kg, the object will accelerate at
a) 0.06 m/s2
b) 17 m/s2
c) 18 m/s2
d) 19 m/s2

a) mass
b) mass divided by the net force acting on you
c) mass times the acceleration due to gravity

The acceleration due to gravity on the surface of Mars is about 1/3 the acceleration due to gravity on Earth's surface. The weight of a space probe on the surface of Mars is about
a) nine times greater than its weight on Earth's surface
b) three times greater than its weight on Earth's surface
c) one third its weight on Earth's surface
d) the same as its weight on Earth's surface

Newton's third law of motion describes
a) action and reaction forces
b) balanced forces
c) centripetal forces
d) net force

In which of the following are action and reaction forces involved?
a) when a tennis racket strikes a tennis ball
b) when stepping from a curb
c) when rowing a boat
d) all of the above

The product of an object's mass and velocity is its
a) centripetal force
b) momentum
c) net force
d) weight

What is conserved when two objects collide in a closed system?
a) acceleration
b) momentum
c) speed
d) velocity

An astronaut travels far away from Earth, her weight
a) decreases because gravity decreases
b) decreases because her mass decreases
c) increases because gravity increases
d) remains the same because her mass remains the same

Play Games with the Questions above at ReviewGameZone.com
To play games using the questions from above, visit ReviewGameZone.com and enter game ID number: 595 in the upper right hand corner or click here.

TEACHERS / EDUCATORS