Newton’s Laws Review game

The force you have to overcome to start an object moving is_____________________. Rolling friction Static friction Sliding friction Air resistance

b. Static Friction

Which label goes on the horizontal axis? Distance Force Mass Acceleration

a. Distance

Which of the following is an example of a noncontact force? Musician playing piano Athlete hitting a ball with a bat A ball falling after you toss it in the air Karate expert breaking a stake of wood

c. A ball falling after you toss it in the air.

An object’s weight is ________ its mass. Equal to Less than Proportional to Greater than

c. Proportional

An arrow can be used to represent a force An arrow can be used to represent a force. The length of the arrow represents ____________. Direction of the force Strength of the force Mass of the force Acceleration of the force

b. Strength of the force

A skater slowing as she slides across the ice is an example of ___________. Inertia Momentum Friction Mass

c. Friction

A planet is discovered that is the same size as Earth and has the same gravitational acceleration, but has twice the mass. If you weigh 700 N on Earth, on the new planet you would weight__________. 350 N 700 N 1,400 N 2,800 N

c. 1,400 N

Which of the following is a force? Momentum Friction Acceleration Velocity

b. Friction

The unit of force is _________. m/s The hertz The joule The newton

d. The newton

Which of the following is an example of an unbalanced force? Book sitting on a table Car sitting in the garage Person on an elevator going down Person leaning on a wall

c. Person on an elevator going down

The force that opposes motion is ___________. A balanced force An unbalanced force An accelerating force Friction

d. Friction

Which of the following is a force or motion that is involved in the Moon orbiting Earth? A force pulling the Moon towards the center A speed at right angles to the line form the mass of the Moon to the center of Earth Acceleration towards the center of Earth All of the above

d. All of the above

An unbalanced force acting on an object causes it to ___________. Move at a constant speed Continue in a straight line Not change its velocity Accelerate

d. Accelerate

Forces that are equal in size but opposite in direction are __________. Balanced forces Frictional forces Inertial forces Net forces

a. Balanced forces

Which of the following is NOT and example of circular motion? Car turning a corner Yo-yo on a string going in a circle Car accelerating onto highway The Moon’s path around Earth

If gravity did NOT affect the path of a horizontally thrown ball, the ball would ___________. Go straight up Travel horizontally Fall straight down Follow a curved path

b. Travel horizontally

Unbalanced forces can make an object accelerate by __________. Changing its speed Changing its direction Both a and b Neither a nor b

c. Both a and b change its speed and direction

When two birds are pulling on a worm and the worm moves towards the first bird, you know that the forces are________. Long-range Action-reaction Unbalanced Balances

c. Unbalanced

Which of the following keeps a satellite in orbit? Frictional force Kinetic force Centripetal force Acceleration force

c. Centripetal force

We are able to walk forward because ____________. We push on the air We push on the ground The air pushes on us The ground pushes on us

d. The ground pushes on us

A 3,000-N force gives an object an acceleration of 15 m/s A 3,000-N force gives an object an acceleration of 15 m/s. The mass of the object is ____________. m=f/a 45,000 kg 1,500 kg 200 kg 15 kg

c. 200 kg

The relationship among force, mass, and acceleration is stated in ___________. The law of conservation of momentum Newton’s first law of motion Newton’s second law of motion Newton’s third law of motion

c. Newton’s second law of motion

A 300-N force acts on a 25- kg object A 300-N force acts on a 25- kg object. The acceleration of the object is ____________. a=f/m 7,500 m/s^2 300 m/s^2 25 m/2^2 12 m/s^2

d. 12 m/s^2

According to Newton’s second law of motion, ___________. F=mv F=m/a A=Fnet/m F=ma

d. F=ma

An object of large mass has _____ than an object of small mass. Less momentum More momentum Less weight Greater acceleration

b. More momentum

Which of the following is the equation for momentum? P=m/v P=m X v P=v/m P=w X s

b. p= m X v

A student hits a nail with a hammer A student hits a nail with a hammer. During the collision, there is _____________. A force on the hammer but not on the nail A force on the nail but not on the hammer A force on the nail and also on the hammer No force on either object in the collision

c. A force on the nail and also on the hammer

Which of the following best completes the phrase Which of the following best completes the phrase? For every action there is ___________. A reaction An equal reaction An opposite reaction An equal and opposite reaction

d. An equal and opposite reaction

Fred (m=67 kg) foolishly attempts to jump from a canoe (m=45 kg) to the dock. If he jumps forward with a speed of 3.3 m/s, how fast will the canoe move backwards 2.2 m/s 22 m/s 4.9 m/s 49 m/s

c. 4.9 m/s

Whenever an object exerts a force on another object, the second object exerts a force of the same magnitude, but in the _________ direction to that of the first object. Opposite Same Right angle Vertical

a. Opposite