The tendency of an object to resist any change of motion is known as ______.

1. force
2. mass
3. inertia
4. balance
   
   

The amount of matter in an object is called its ________.

1. mass
2. balance
3. force
4. weight
   
   

The greater the mass of an object,

1. the less force it can exert.
2. the more space it takes up.
3. the more balanced it is.
4. the greater the inertia.
   
   

The force of gravity of a person or object at the surface of a planet is known as?

1. mass
2. air resistance
3. inertia
4. weight
   
   

A book is sitting on a dashboard of a car that's stopped at a traffic light. As the car starts to move forward, the book slides off the dashboard. Pick the most correct explanation.

1. There was grease on the dashboard
2. The object had inertia.
3. A supernatural force took over.
4. Air resistance made the book move backward.
   
   

1. two objects always exert gravitational forces on each other.
2. the force of gravity depends on the mass and the distance between the two objects.
3. all objects fall at different rates on earth.
4. both a and b.

1. gravity
2. acceleration
3. inertia
4. friction

1. creates a balanced force.
2. disappears into the wood.
3. moves at a constant speed.
4. exerts and equal and opposite force back on the hammer.

1. A rocket taking off from earth which pushes gasses in one direction and the rocket in the other.
2. A rocket sitting on the ground preparing for take-off but it needs an outside force to overcome its inertia of a non-moving object.
3. A rocket that is accelerating through space and exerts a great amount of force because its mass and acceleration is so large.
4. Both b and c.

1. A rocket taking off from earth which pushes gasses in one direction and the rocket in the other.
2. A rocket sitting on the ground preparing for take off but it needs an outside force to overcome its inertia of a nonmoving object.
3. A rocket that is accelerating through space and exerts a great amount of force because its mass and acceleration is so large.
4. Both b and c.

1. A rocket taking off from earth which pushes gasses in one direction and the rocket in the other.
2. A rocket sitting on the ground preparing for take off but it needs an outside force to overcome its inertia of a nonmoving object.
3. A rocket that is accelerating through space and exerts a great amount of force because its mass and acceleration is so large.
4. Both b and c

1. momentum is not lost.
2. velocity increases.
3. velocity decreases.
4. only the object with the larger mass continues on.

Which of the following is an example of momentum in action?

1. A person jogging through the park.
2. A bowling ball hitting pins.
3. A person playing pool.
4. Both b and c.

1. By increasing its mass or velocity.
2. By increasing its acceleration and and friction force.
3. By increasing its friction force and mass.
4. Both b and c.

1. a car sliding on ice.
2. a tug-of-war game in which no one wins.
3. a car hitting a telephone pole.
4. a roller coaster going down the first drop.

1. a car parked in the garage.
2. a tug-of-war game in which no one wins.
3. a bridge.
4. a roller coaster going down the first drop.

1. gravity
2. force
3. universal law
4. inertia

1. crazy
2. greater than either force
3. zero
4. smaller than either force

1. exert a force on another object.
2. create a balanced force on another object.
3. create an unbalanced force on another object.
4. change the speed or direction.

1. A car cruising on the Interstate.
2. A car cruising on CIM Street.
3. A car crashing into another car.
4. A car exploding.

1. A constant speed has the same speed at every point on a graph, and average speed is computed by dividing the total distance by the total time; each point on the graph could be a different speed.
2. Constant speed is faster than average speed.
3. Average speed is faster than constant speed.
4. An average speed has the same speed at every point on a graph, and a constant speed is computed by dividing the total distance by the total time; each point on the graph could be a different speed.

1. friction and mass.
2. friction and gravity.
3. gravity and inertia.
4. gravity and mass.

1. building kinetic energy.
2. building potential energy.
3. gravitational forces.
4. nuclear energy.

1. kinetic energy.
2. potential energy.
3. nuclear energy.
4. all of the above.

1. free fall.
2. gravity.
3. air resistance.
4. acceleration.

1. only balanced forces act on the car.
2. an inside force acts on the car.
3. only unbalanced forces act on the car.
4. no forces act on the car.

1. gravity
2. friction
3. inertia
4. both b and c

The force that opposes motion between the car's wheels and the track of the roller coaster is ______.

1. net
2. balanced
3. friction
4. inertia

What is the average speed of the cyclist?

1. 10 km/min.
2. 10 km/hour
3. 70 km/hour
4. 1 hour/km

1. 20 m/sec.
2. 120 m/sec.
3. 2.4 m/sec.
4. 60 m/sec.

1. Between 4 sec. and 5 sec.
2. Between 3 sec. and 4 sec.
3. Between 2 sec. and 3 sec.
4. Between 1 sec. and 2 sec.

1. The roller coaster reached a constant speed.
2. The roller coaster is at the bottom of a loop.
3. The roller coaster is at the top of a camelback.
4. The emergency brakes were applied forcing the car to a stop.

1. The roller coaster graph
2. The cyclist graph

A sprinter runs the 225m in a time of 25 seconds. What is the sprinter's speed?

1. 5625 m/sec.
2. 56 m/sec.
3. 9 m/sec.
4. 9 m/hr
   
   

A 535 kg car is moving at a velocity of 55 m/hr north. What is the car's momentum?

1. 29.42 kg-cm/hr
2. 9.72 kg-m/hr
3. 29,425 kg-m/hr
4. 972 kg-m/hr
   
   

Answer the questions below after reading the following passage.

A massive roller coaster has been built in Twin Falls, ID and you have been hired to make some calculations for their promotional brochure. The company has heard about your expertise in this area. The roller coaster has a height of 285 meters on the first hill. The drop length is 310 meters (on the first hill). It takes 3 seconds for the roller coaster car to go from the top to the bottom of the first drop. It takes 4 seconds to reach the top of the second hill, which is 150 meters in length. You have realized there is a flaw in the design because the force on the second hill is too great. You notify the builders and become a local hero celebrated for your intelligence. (Oh, by the way, the mass of the roller coasters cars is 225 kg). Draw a diagram, it will help. Attach your work process.

What was the force on the second hill?

1. -3234.36 N
2. 0.0733 N
3. -3,703 N
   
   

What is the speed on the first drop?

1. 95 m/sec.
2. 103.33 m/sec.
3. 323.22 m/sec.
   

What is the momentum after the first drop?

1. 23,249.25 kg-m/sec.
2. 2,137 g-m/sec.
3. 21,375 kg-m/sec.
4. 57.8 kg-m/sec.
   

What is the kinetic energy of the first drop?

1. 1,201 N
2. 1,015,312.50 kg-m²/s²
3. 1,201,172 kg-m²/s²
   

What is the potential energy of the first drop?

1. 628.42 N
2. 64,125 J
3. 683,550 J
4. 628,425 J

Which of Newton's Laws would allow a passenger to fly right out of his seat if he did not have a lap belt over him and the roller coaster suddenly stopped?

1. First law - "Once in motion..."
2. Second law - "Mass x acceleration =..."
3. Third law - "For every action there is an..."

Your body bouncing back into your seat after hitting the lap bar is an example of which of Newton's Laws in action?

1. First law - "Once in motion..."
2. Second law - "Mass x acceleration =..."
3. Third law - "For every action there is an..."

1. First law - "Once in motion..."
2. Second law - "Mass x acceleration =..."
3. Third law - "For every action there is an..."

85 mi./hr.

Convert 55.7 g into kilograms

1. .557 kg
2. .00557 kg
3. .0557 kg
4. 55700 kg

Convert 678.92 cm into meters

1. 6.7892 m
2. 67892 m
3. .67892 m
4. 678920 m
   

Convert 25 m into centimeters

1. 250 cm
2. 2,500 cm
3. .25 cm
4. .025 cm
   

Convert 25 m into kilometers

1. 2500 km
2. .25 km
3. .025 km
4. 25000 km

Convert 43.89 km into meters

1. .04389 m
2. .4389 m
3. 43,890 m
4. .004389 m

1. kinetic energy
2. potential energy
3. nuclear energy
4. gravitational energy

1. Kinetic energy
2. Potential energy
3. Nuclear energy
4. Gravitational energy

1. 6,618.8 N
2. 1,049.6 J
3. 1,049.6 N
4. 6,618.8 J

1. 6428.8 N
2. 1049.6 J
3. 1049.6 N
4. 6428.8 J

1. 19.6 m/sec/sec
2. 29.4 m/sec/sec
3. 39.2 m/sec/sec
4. None of the above.

1. A gravitational force on a mass.
2. How big an object is.
3. The amount of matter in an object.
4. The amount of space an object takes up.