26 Questions
| Total Attempts: 35

Reviews terms and definitions for common motion concepts

Questions and Answers

- 1.The change in position of an object is known as its _______.
- 2.An object's _______ can be calculated by dividing its displacement by the time.
- 3.______ is calculated by dividing distance by time.
- 4.A runner runs seven times around a track. If the track is 0.25 miles long, the distance he has run is _______ miles.
- 5.A runner runs seven times around a track. If the track is 0.25 miles long, his displacement is ________ miles.
- 6.A runner runs seven times around a track. If the track is 0.25 miles long and it took him 18 minutes to run the seven laps, his average speed is ________ mph.
- 7.A runner runs seven times around a track. If the track is 0.25 miles long and it took him 18 minutes to run the seven laps, his average velocity is ________ mph.
- 8.Displacement is considered a _______ quantity.
- 9.Kathy's dog breaks free from its leash and she has to chase it all over the neighborhood. At first, she runs 3.0 blocks east. Then she turns and runs 5.0 blocks west. Finally, she runs another 1.5 blocks east. Kathy ran a distance of ______ blocks.
- 10.Kathy's dog breaks free from its leash and she has to chase it all over the neighborhood. At first, she runs 3.0 blocks east. Then she turns and runs 5.0 blocks west. Finally, she runs another 1.5 blocks east. Kathy's displacement is _______.
- 11.The term for how quickly an object's velocity changes is known as __________.
- 12.Which of the following statements describes a situation in which the car is undergoing an acceleration?
- A.
A car slows down as it approaches a red light.

- B.
A car speeds up as the light turns green.

- C.
A car makes a right hand turn at a constant speed.

- D.
A car maintains its speed as it travels down a straight road.

- 13.On a distance versus time graph, a straight horizontal line indicates which of the following?
- A.
The object is maintaining a constant speed.

- B.
The object is accelerating.

- C.
The object is not moving.

- 14.On a velocity versus time graph, a straight horizontal line indicates which of the following?
- A.
The object is maintaining a constant speed.

- B.
The object is accelerating.

- C.
The object is not moving.

- 15.Based on the graph below, which statement correctly describes the object's motion?
- A.
The object is speeding up.

- B.
The objects is slowing down.

- C.
The object is maintaining a constant speed.

- D.
The object is not moving.

- 16.Based on the graph below, which statement correctly describes the object's motion?
- A.
The object is speeding up.

- B.
The object is slowing down.

- C.
The object is maintaining speed.

- D.
The object is not moving.

- 17.Forces that cancel each other out are called ______ forces
- A.
Inactive

- B.
Balanced

- C.
Unbalanced

- D.
Null

- 18.A ball is thrown straight up in the air. According to Newton's first law of motion, what is the reason for the ball falling back to Earth?
- A.
A force has acted on it.

- B.
The change in the ball's acceleration is proportional to the force acting on it.

- C.
The ball exerts a force on the air surrounding it.

- D.
It is accelerating in the same direction as Earth's gravitational force on it.

- 19.When unbalanced forces act on an object,
- A.
The object accelerates

- B.
Friction becomes greater than the net force

- C.
The object speeds up

- D.
The net force is zero

- 20.A 10. N force is applied to a given mass which causes it to accelerate at 1.0 m/s/s. If the same force is applied to an object with half the mass, what would the acceleration be?
- A.
1.0 m/s/s

- B.
2.0 m/s/s

- C.
0.50 m/s/s

- D.
4.0 m/s/s

- 21.A 30 kg child exerts a force of 100 N on a 50 kg object. The force the object exerts on the child is
- A.
0 N

- B.
Less than 100 N

- C.
100 N

- D.
More than 100 N

- 22.If the net force applied to an object is doubled, the acceleration of the object is
- A.
Cut in half

- B.
Doubled

- C.
Unchanged

- D.
Quadrupled

- 23.A car whose mass is 2000 kg is accelerated from rest to a speed of 15 m/s in 10. s on a level highway. What is the net force?
- A.
2000 N

- B.
3000 N

- C.
20000 N

- D.
30000 N

- 24.The wooden block must be
- A.
At rest

- B.
Moving to the right at a constant velocity

- C.
Accelerating to the left

- D.
Accelerating to the right

- 25.If F1 equals 2 N and F2 equals 5 N, then the net force on the block is
- A.
2 N left

- B.
3 N right

- C.
2 N right

- D.
3 N right

- 26._____ describes how fast something is going, whereas, ______ describes how fast something is going and in a certain direction.
- A.
Speed, acceleration

- B.
Velocity, speed

- C.
Velocity, acceleration

- D.
Speed, velocity