3Q SCIENCE

1.What effect does the friction between a car's capacity to speed up and slow down on the road surface possess?

          a.It increases the car’s speed

          b.It decreases the car’s speed

          c.It has no effect on the car’s speed

          d.It causes the car to float

• A

• B

• C

• D

2.How does friction affect a person who is jumping  jumping on a trampoline?

          a. It makes easier to jump higher

          b.It makes it harder to jump higher

          c.It has no effect on jumping higher

          d.It has an effect on jumping higher 

• A

• B

• C

• D

3. What effect does friction have on a skateboarder riding on a concrete ramp?

a. It makes it easier to balance on the skateboard

b.  it makes it harder to balance on the skateboard

c. It has no effect on the skateboarder’s balance

d.  it causes the skateboard to jump

• A

• B

• C

• D

4.What happens to a pencil dropped from a tall building when it hits gravity? Rico walked to the third story and dropped his pencil.

a.it makes the pencil fall faster

b.it makes the pencil fall slower

c.it has no effect on the pencil’s speed

d.it causes the pencil to fly upwards   

• A

• B

• C

• D

5.A person is pushing a heavy box across a carpeted floor. What effect does friction have on the box’s movement?

          a.It helps the box move faster

          b.It slows down the box’s movement

          c.it has no effect on the box’s movement

          d.it causes the box to jump up and down

• A

• B

• C

• D

6.A ball is thrown straight up in the air. What effect does gravity have on the ball’s movement as it reaches the highest point?

          a.It stops the ball’s movement

          b.It makes the ball move faster

          c.it has no effect on the ball’s movement

          d.it causes the ball to change direction

• A

• B

• C

• D

7.A car is driving on a steep hill covered with snow. What effect does friction have on the car’s movement as it tries to go up the hill?

          a.it helps the car move up the hill faster

          b.it slows down the car’s movement up to the hill

          c.it has no effect on the car’s movement up the hill

          d.it causes the car to spin around in circles7.

• A

• B

• C

• D

8.Which of the following is not a type of friction?

a) Static friction          c) Kinetic friction

b) Rolling friction     d) Electrical friction

• A

• B

• C

• D

9.What is the force that opposes the motion of an object?

a) Gravity                                                   c) Acceleration

b) Inertia                                                     d) Friction

• A

• B

• C

• D

10.What are the factors that influence the level of friction between two surfaces?

a) The surface area of the contact

b) The weight of the object

c) The roughness of the surfaces in contact

d) All of the above

• A

• B

• C

• D