May The Force Be With You

Which of the following forces can act from a distance?

• Gravitational force

• Magnetic force

• Elastic spring force

• Frictional force

Which of the following statements about gravitational force is true?

• Gravitational force is the same on Earth and on the Moon.

• Gravitational force is less on Earth than on the Moon.

• Gravitational force is greater on Earth than on the Moon.

• Gravitational force is zero on Earth and on the Moon.

The photo shows a man who is rock climbing. Which of the following force(s) are acting on the man now?

• Gravitational force

• Frictional force

• Push force from the wall

• Pull force from the rope

A hot air balloon is floating in the air. Which of the following statements about the hot air balloon is true?

• Magnetic force is acting on the hot air balloon.

• Gravitational force is acting on the hot air balloon.

• There is no gravitational force acting on the hot air balloon.

• There is no gravitational potential energy acting on the hot air balloon.

Three boxes were at different heights above the ground. Which of the following statements is true about the boxes?

• Box A has more gravitational potential energy than Box C.

• Box A has more gravitational force acting on it than Box C.

• Box C has more gravitational force acting on it than box B.

• Box C has more gravitational potential energy than box B.

Which of the following is a difference between weight and mass?

• Weight can change depending on location, but mass remains constant.

• Mass can change depending on location, but weight remains constant.

• Weight is dependent on the amount of gravitational potential energy an object has.

• Mass is dependent on the amount of gravitational force acting on the object.

If the car is moving in the direction shown in the picture, in which direction would friction be acting against the car wheels?

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Which of the following way(s) would make it easier for you to move a 10kg box from one end of the room to the other?

• Put wheels beneath the box

• Spread sand all over the floor

• Spread grease all over the floor

• Pull the box instead of pushing

When Block R was added to the structure as shown in Diagram 2, Blocks Q and R fell to the ground. Why is that so?

• The weight of R was greater than the weight of Q

• Friction between Q and P was less than the total weight of R and Q.

• Friction between P and L was less than the total weight of R, Q and P.

• The total weight of R and Q was greater than the total weight of Q and P.

A boy kicked a block of ice. The block of ice moved along the floor to G and then to W. It stopped at W. Which statement about the forces acting on the block is correct?

• Only weight is acting at G but both friction and weight are acting at W.

• Only friction is acting at G but both friction and weight are acting at W.

• Both friction and weight are acting at G but only friction is acting at W.

• Both friction and weight are acting at G but only weight is acting at W.