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G9 - Q4 - SCIENCE (PHYSICS) - REVIEWER

Total questions: 50

Worksheet time: 2hrs 5mins

Name
Class
Date
1.

Which term is used to refer to the change of location and position of an object?

a)
motion
b)
acceleration
c)
velocity
d)
gravity
2.

Which of the following statements characterizes Uniform Motion?

a)

Constant Acceleration

b)

Changing Acceleration

c)

Constant Changing of Direction

d)

Constant Velocity

3.

Which characterizes Uniformly Accelerated Motion?

a)

Constant Velocity

b)

Motion in Straight Line

c)

Consistent Amount of Acceleration

d)

No Outside Forces Involve

4.

Which of the following situations does NOT show Acceleration?

a)

A motorcycle turning left in an intersection

b)

A white van slowing down to kidnap someone

c)

A bus speeding up to overtake another bus in front

d)

An E-Bike driving in constant velocity of 30 kph along the bike lane

5.

During a marathon, Dash accelerated by 2 m/s2 from rest for 8 seconds. How far has she traveled from the starting line after 8 seconds?

(Clue: df = d0 + V0 t +  (0.5)at2)

a)

64 meters

b)

8 meters

c)

128 meters

d)

256 meters

6.

During a marathon, Dash accelerated by 2 m/s2 from rest for 8 seconds. How fast is her velocity after 8 seconds?

(Clue: Vf = V0 +  at)

a)

16 m/s

b)

32 m/s

c)

64 m/s

d)

128 m/s

7.

During their swimming, Angel took the slide and accelerated at 4 m/s2 for 6 seconds before reaching the end of the slide. How far has she traveled from the top to the bottom of the slide?

(Clue: df = d0 + V0 t +  (0.5)at2)

a)

72 meters

b)

144 meters

c)

12 meters

d)

24 meters

8.

During their swimming, Angel took the slide and accelerated at 4 m/s2 for 6 seconds before reaching the end of the slide. How fast is her velocity after 6 seconds?

(Clue: Vf = V0 +  at)

a)

24 m/s

b)

12 m/s

c)

128 m/s

d)

64 m/s

9.

Which refers to any object that is thrown or launched in the air?

a)

Projectile Motion

b)
Mass
c)
Projectile
d)
Trajectory
10.

What is the imaginary curved path created by an object thrown in the air?

a)

Projectile Motion

b)
Flight Time
c)
Projectile
d)
Trajectory
11.

Which refers to the maximum horizontal distance in a projectile motion?

a)
Height
b)
Flight Time
c)
Range
d)
Trajectory
12.

Which term is used for the total amount time a thrown object stays in the air in a projectile motion?

a)
Height
b)
Flight Time
c)

Time Up

d)
Trajectory
13.

What kind of motion is produced through a combination of uniform horizontal motion and a uniformly accelerating vertical motion?

a)
Uniform Motion
b)
Projectile Motion
c)
Uniformly Accelerated Motion
d)
Trajectory
14.

In a projectile motion, what happens to the velocity of the projectile when it reaches its maximum height?

a)
it becomes faster
b)
its vertical velocity becomes zero
c)
it becomes slower
d)
its horizontal velocity becomes zero
15.

Which part of Projectile Motion is affected by Gravity?

a)
Horizontal Component
b)

Horizontal and Vertical Components

c)
Vertical Component
d)

No components is affected by Gravity

16.

Why do divers dive deeper in water when they jumped from higher places?

a)
Their vertical velocity becomes faster as they move downward
b)
Their vertical velocity becomes slower as they move downward
c)
Their horizontal velocity becomes faster as they move downward
d)
Their horizontal velocity becomes slower as they move downward
17.

A ball rolled horizontally at 3 m/s from a terrace that is 19.6 m high. How much time did it take before the ball hit the ground?

(Clue: dfy = d0y + V0yt+  (0.5) gt2)

a)

2 seconds

b)

4 seconds

c)

1 seconds

d)

6.5 seconds

18.

A ball rolled horizontally at 3 m/s from a terrace that is 19.6 m high. How far did the ball travel from the base of the house?

(Clue: dfy = d0y + V0yt+  (0.5) gt2 for the time down)

(Clue: dfx = d0x + Vxt for the range)

a)

6 meters

b)

12 meters

c)

3 meters

d)

24 meters

19.

While playing golf, Rhian hit the ball which caused it to move at 12 m/s at an angle of 60°. What is the horizontal velocity of the ball after she hits it?

(Clue: V0x =  V0 cos⁡θ)

a)
0 m/s
b)

6 m/s

c)

10.39 m/s

d)

12 m/s

20.

While playing golf, Rhian hit the ball which caused it to move at 12 m/s at an angle of 60°. What is the vertical velocity of the ball after she hits it?

(Clue: V0y =  V0 sin⁡θ)

a)
0 m/s
b)

6 m/s

c)

10.39 m/s

d)

12 m/s

21.

While playing golf, Rhian hit the ball which caused it to move at 12 m/s at an angle of 60°. What is the velocity of the ball when it reaches its maximum height?

a)
0 m/s
b)

6 m/s

c)

10.39 m/s

d)

12 m/s

22.

While playing golf, Rhian hit the ball which caused it to move at 12 m/s at an angle of 60°. How much time will the ball take before it reaches its maximum height?

(Clue: V0y = V0sin⁡θ for the Initial Vertical Velocity)

(Clue: Vfy = V0y + gt for the Time)

a)

1.06 seconds

b)
  1. 1.22 seconds

c)

0.61 seconds

d)

101.82 seconds

23.

While playing golf, Rhian hit the ball which caused it to move at 12 m/s at an angle of 60°. How high is its maximum height?

(Clue: V0y = V0sin⁡θ for the Initial Vertical Velocity)

(Clue: Vfy = V0y + gt for the Time)

(Clue: dfy = d0y +  (0.5)(V0y + Vfy )(t) for the Height)

a)

5.51 meters

b)
  1. 11.01 meters

c)

6.36 meters

d)

12 meters

24.

Which refers to how difficult an object can be stopped from its motion?

a)
Acceleration
b)
Impulse
c)
Momentum
d)
Force
25.

Which refers to the amount of Force needed to apply on an object over a period of time to change its momentum?

a)

Final Momentum

b)
Impulse
c)
Inertia
d)
Force
26.

Vanini, who weighs around 50 kg, is walking at 5 m/s. What is her momentum?

(Clue: p = mv)

a)

10 kg · m/s

b)

10 m/s

c)

250 kg · m/s

d)

250 kg

27.

A ball that has a momentum of 48 kg · m/s is moving at 6 m/s. How heavy is this ball?

(Clue: p = mv)

a)

48 kg

b)

6 kg

c)

8 kg

d)

8 kg · m/s

28.

What are the factors that can affect an object’s momentum?

a)
gravity & velocity
b)

impulse & velocity

c)
velocity & mass
d)
mass only
29.

How does Airbags in Car reduce the damage to passengers during accidents?

a)

It makes the collision time longer which makes the force weaker

b)

It make the collision time shorter which makes the force stronger

c)

It makes the collision time longer which makes the force stronger

d)

It make the collision time shorter which makes the force weaker

30.

Aling Maris asked his son to move their 30 kg washing machine across their wash area. His son pushed it for 15 seconds causing it to move by 2 m/s towards their wash area. How much force did her son applied to it?

(Clue: Δp = F · Δt)

a)

4 N

b)

60 N

c)
900 N
d)

1 N

31.

What is the Equation for Law of Conservation of Momentum?

a)
p = mv
b)
Δp = f· Δt
c)
po = pf
d)
Δp = m (vf – vo)
32.

Which type of energy is called as the “Energy in Motion”?

a)
Mechanical Energy
b)
Kinetic Energy
c)
Potential Energy
d)
Velocity
33.

Which type of energy is called as the “Stored Energy”?

a)

Battery

b)
Kinetic Energy
c)
Potential Energy
d)

Chemical Energy

34.

What factors can affect the amount of Gravitational Potential Energy of an object?

a)
gravity & velocity
b)
height & velocity
c)
mass & height
d)

gravity & acceleration

35.

Which has the lowest amount of GPE?

a)

8 kg ball on

top of a 100 m building

b)

8 kg ball on

top of a 0.5 m chair

c)

8 kg ball on

top of a 1 m table

d)

All have Equal amount of GPE

36.

Which type of energy is always present only in moving objects?

a)
Mechanical Energy
b)
Kinetic Energy
c)
Potential Energy
d)
Velocity
37.

What is the Equation for the Law of Conservation of Mechanical Energy?

a)
ME = PE + KE
b)
PE = KE
c)
ME = PE ÷ KE
d)
ME = PE x KE
38.

A 16 kg chandelier is hanging from a ceiling that is 5 m high from the ground. How much GPE does it have?

(Clue: GPE = mgh)

a)

784 J

b)

80 J

c)

400 J

d)

200 J

39.

A 16 kg chandelier is hanging from a ceiling that is 5 m high from the ground. How much Kinetic Energy will it have when it falls and hits the ground?

a)

784 J

b)

0 J

c)

400 J

d)

200 J

40.

A 16 kg chandelier is hanging from a ceiling that is 5 m high from the ground. How fast is its vertical velocity when it hits the ground?

(Clue: GPE = mgh)

(Clue: ME = PE + KE)

(Clue: KE = 0.5 mv2)

a)

9.90 m/s

b)

98 m/s

c)

24.5 m/s

d)

4.95 m/s

41.

What is the formula for calculating the Kinetic Energy of an object?

a)
KE = mgh
b)
KE = mv
c)

KE = 0.5 mv2

d)

KE = 2 mv2

42.

What happens to the GPE of an object as distance from the ground increases?

a)
changes randomly
b)
decreases
c)
increases
d)
stays the same
43.

What happens to the GPE of an object as distance from the ground decreases?

a)
changes randomly
b)
decreases
c)
increases
d)
stays the same
44.

What happens to the KE of an object as it falls down?

a)
changes randomly
b)
decreases
c)
increases
d)
stays the same
45.

Why does an object receives more damage when it falls from higher place?

a)
Because more GPE is converted into KE
b)
Because less GPE is converted into KE
c)
Because gravity acts only in high places
d)
Because its velocity becomes slower
46.

Which term is used for Energy as it flows from hot to cold objects?

a)

Thermal Energy

b)
Potential Energy
c)
Kinetic Energy
d)
Heat
47.

Which method of heat transfer does not need a medium and can happen in Vacuum just like in Outer Space?

a)
Conduction
b)
Convection
c)
Radiation
d)
Insulation
48.

Which type of Heat transfer happens with the help of moving fluids such as water and air?

a)
Conduction
b)
Convection
c)
Radiation
d)
Insulation
49.

Which type of heat transfer happens during rubbing of hands?

a)
Conduction
b)
Convection
c)
Radiation
d)
Insulation
50.

Which process is used to stop the transfer of heat from one object to another?

a)
Conduction
b)
Convection
c)
Radiation
d)
Insulation