Explanation:
Introduction:
Are you looking for questions to make your grade 2 students understand the concept of friction? Look no further, this friction quiz for grade 2, provides twenty interesting questions that would surely help your students understand the concept of friction. Let’s begin!
Q1: What is friction?
Options:
A: The force of gravity between two objects
Magnetism between two objects
C: The force that resists motion between two objects when they come into contact
D: The force of air between two objects
Answer: C
Explanation: Friction is the force that resists motion between two objects when they come into contact.
Q2: What are the two types of friction?
Options:
A: Rolling and slipping
B: Air and water
C: Gravity and magnetism
D: Static and sliding
Answer: D
Explanation: There are two types of friction, static and sliding.
Q3: What happens when you increase the frictional force?
Options:
A: The speed of the object increases
B: The speed of the object decreases
C: The object moves faster
D: The object moves slower
Answer: D
Explanation: When you increase the frictional force, the object moves slower.
Q4: How does friction affect the motion of an object?
Options:
A: It decreases the motion of the object
B: It increases the motion of the object
C: It prevents the object from moving
D: It makes the object move faster
Answer: A
Explanation: Friction affects the motion of an object by decreasing its motion.
Q5: What is the effect of friction on the kinetic energy of an object?
Options:
A: It increases the kinetic energy of an object
B: It decreases the kinetic energy of an object
C: It prevents the object from gaining energy
D: It makes the object move faster
Answer: B
Explanation: Friction decreases the kinetic energy of an object.
Q6: What happens to a rolling object when you increase the frictional force?
Options:
A: It increases the speed of the object
B: It decreases the speed of the object
C: It stops the object completely
D: It prevents the object from rolling
Answer: B
Explanation: When you increase the frictional force, the speed of the rolling object decreases.
Q7: Does friction occur in a vacuum?
Options:
A: Yes
B: No
C: Depends on the air pressure
D: Depends on the force of the object
Answer: B
Explanation: Friction does not occur in a vacuum.
Q8: What type of friction occurs when two surfaces are sliding against each other?
Options:
A: Static friction
B: Rolling friction
C: Sliding friction
D: Air friction
Answer: C
Explanation: Sliding friction occurs when two surfaces are sliding against each other.
Q9: How does friction help while walking?
Options:
A: It helps us stay balanced
B: It helps us move faster
C: It helps us stop
D: It helps us jump higher
Answer: C
Explanation: Friction helps us stop while walking.
Q10: What type of friction occurs when two surfaces are in contact but not moving?
Options:
A: Rolling friction
B: Sliding friction
C: Static friction
D: Air friction
Answer: C
Explanation: Static friction occurs when two surfaces are in contact but not moving.
Q11: Does friction cause an object to move?
Options:
A: Yes
B: No
C: Depends on the air pressure
D: Depends on the force of the object
Answer: B
Explanation: Friction does not cause an object to move.
Q12: When two objects move in opposite directions, is friction produced?
Options:
A: Yes
B: No
C: Depends on the air pressure
D: Depends on the force of the object
Answer: A
Explanation: Friction is produced when two objects move in opposite directions.
Q13: What type of friction is produced when a body is pushed on a horizontal surface?
Options:
A: Rolling friction
B: Air friction
C: Static friction
D: Sliding friction
Answer: C
Explanation: Static friction is produced when a body is pushed on a horizontal surface.
Q14: What type of friction is produced when two rough surfaces slide past each other?
Options:
A: Rolling friction
B: Air friction
C: Static friction
D: Sliding friction
Answer: D
Explanation: Sliding friction is produced when two rough surfaces slide past each other.
Q15: Is friction necessary?
Options:
A: Yes
B: No
C: Depends on the air pressure
D: Depends on the force of the object
